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  <front>
    <journal-meta><journal-id journal-id-type="publisher">EJM</journal-id><journal-title-group>
    <journal-title>European Journal of Mineralogy</journal-title>
    <abbrev-journal-title abbrev-type="publisher">EJM</abbrev-journal-title><abbrev-journal-title abbrev-type="nlm-ta">Eur. J. Mineral.</abbrev-journal-title>
  </journal-title-group><issn pub-type="epub">1617-4011</issn><publisher>
    <publisher-name>Copernicus Publications</publisher-name>
    <publisher-loc>Göttingen, Germany</publisher-loc>
  </publisher></journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.5194/ejm-32-209-2020</article-id><title-group><article-title>IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) –
Newsletter 53</article-title><alt-title>CNMNC Newsletter 53</alt-title>
      </title-group><?xmltex \runningtitle{CNMNC Newsletter 53}?><?xmltex \runningauthor{R.~Miyawaki et al.}?>
      <contrib-group>
        <contrib contrib-type="author" corresp="no" rid="aff1">
          <name><surname>Miyawaki</surname><given-names>Ritsuro</given-names></name>
          
        </contrib>
        <contrib contrib-type="author" corresp="no" rid="aff2">
          <name><surname>Hatert</surname><given-names>Frédéric</given-names></name>
          
        </contrib>
        <contrib contrib-type="author" corresp="yes" rid="aff3">
          <name><surname>Pasero</surname><given-names>Marco</given-names></name>
          <email>marco.pasero@unipi.it</email>
        </contrib>
        <contrib contrib-type="author" corresp="no" rid="aff4">
          <name><surname>Mills</surname><given-names>Stuart J.</given-names></name>
          
        </contrib>
        <aff id="aff1"><label>1</label><institution>Chairman, CNMNC | Department of Geology, National Museum of
Nature and Science, <?xmltex \hack{\break}?> 4-1-1 Amakubo, Tsukuba 305-0005, Japan</institution>
        </aff>
        <aff id="aff2"><label>2</label><institution>Vice-Chairman, CNMNC | Laboratoire de Minéralogie,
Université de Liège, Bâtiment B18, <?xmltex \hack{\break}?> Sart Tilman, 4000 Liège,
Belgium</institution>
        </aff>
        <aff id="aff3"><label>3</label><institution>Vice-Chairman, CNMNC | Dipartimento di Scienze della Terra,
Università di Pisa, <?xmltex \hack{\break}?> Via Santa Maria 53, 56126 Pisa, Italy</institution>
        </aff>
        <aff id="aff4"><label>4</label><institution>Secretary, CNMNC | Geosciences, Museum Victoria, P.O. Box 666,
Melbourne, Victoria 3001, Australia</institution>
        </aff>
      </contrib-group>
      <author-notes><corresp id="corr1">Marco Pasero (marco.pasero@unipi.it)</corresp></author-notes><pub-date><day>17</day><month>February</month><year>2020</year></pub-date>
      
      <volume>32</volume>
      <issue>1</issue>
      <fpage>209</fpage><lpage>213</lpage>
      
      <permissions>
        <copyright-statement>Copyright: © 2020 Ritsuro Miyawaki et al.</copyright-statement>
        <copyright-year>2020</copyright-year>
      <license license-type="open-access"><license-p>This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link></license-p></license></permissions><self-uri xlink:href="https://ejm.copernicus.org/articles/32/209/2020/ejm-32-209-2020.html">This article is available from https://ejm.copernicus.org/articles/32/209/2020/ejm-32-209-2020.html</self-uri><self-uri xlink:href="https://ejm.copernicus.org/articles/32/209/2020/ejm-32-209-2020.pdf">The full text article is available as a PDF file from https://ejm.copernicus.org/articles/32/209/2020/ejm-32-209-2020.pdf</self-uri>
    </article-meta>
  </front>
<body>
      

      <p id="d1e121">The information given here is provided by the IMA Commission on New
Minerals, Nomenclature and Classification for comparative purposes and as a
service to mineralogists working on new species.</p>
      <p id="d1e124">Each mineral is described in the following format:
<list list-type="bullet"><list-item>
      <p id="d1e129">mineral name, if the authors agree on its release prior to the full
description appearing in press;</p></list-item><list-item>
      <p id="d1e133">chemical formula;</p></list-item><list-item>
      <p id="d1e137">type locality;</p></list-item><list-item>
      <p id="d1e141">full authorship of proposal;</p></list-item><list-item>
      <p id="d1e145">e-mail address of corresponding author;</p></list-item><list-item>
      <p id="d1e149">relationship to other minerals;</p></list-item><list-item>
      <p id="d1e153">crystal system, space group, structure determined, yes or no;</p></list-item><list-item>
      <p id="d1e157">unit-cell parameters;</p></list-item><list-item>
      <p id="d1e161">strongest lines in the X-ray powder diffraction pattern;</p></list-item><list-item>
      <p id="d1e165">type specimen repository and specimen number;</p></list-item><list-item>
      <p id="d1e169">citation details for the mineral prior to publication of full
description.</p></list-item></list>
Citation details concern the fact that this information will be published in
the <italic>European Journal of Mineralogy</italic> on a routine basis, as well as being added month by month to the
Commission's web site.</p>
      <p id="d1e176">It is still a requirement for the authors to publish a full description of
the new mineral.</p>
      <p id="d1e179">No other information will be released by the commission.</p>
<sec id="Ch1.S1">
  <label>1</label><title>New mineral proposals approved in December 2019</title>
<sec id="Ch1.S1.SSx1" specific-use="unnumbered">
  <title>IMA No. 2019-082</title>
      <p id="d1e195"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e200">Dutrowite</p>
            </list-item>
            <list-item>

      <p id="d1e206"><inline-formula><mml:math id="M1" display="inline"><mml:mrow class="chem"><mml:mi mathvariant="normal">Na</mml:mi><mml:mo>(</mml:mo><mml:msubsup><mml:mi mathvariant="normal">Fe</mml:mi><mml:mn mathvariant="normal">2.5</mml:mn><mml:mrow><mml:mn mathvariant="normal">2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M2" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Ti</mml:mi><mml:mn mathvariant="normal">0.5</mml:mn></mml:msub><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M3" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Al</mml:mi><mml:mn mathvariant="normal">6</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M4" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Si</mml:mi><mml:mn mathvariant="normal">6</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M5" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">18</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M6" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">BO</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M7" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:mi mathvariant="normal">OH</mml:mi><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e307">Fornovolasco metarhyolite formation, close to the Boscaccio locality,
Fornovolasco, Fabbriche di Vergemoli (LU), Apuan Alps, Tuscany, Italy
(<inline-formula><mml:math id="M8" display="inline"><mml:mrow><mml:mn mathvariant="normal">44</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">01</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">53</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M9" display="inline"><mml:mrow><mml:mn mathvariant="normal">10</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">22</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">11</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> E)</p>
            </list-item>
            <list-item>

      <p id="d1e363">Cristian Biagioni*, Ferdinando Bosi, Daniela Mauro, Henrik Skogby, Andrea
Dini, and Federica Zaccarini</p>
            </list-item>
            <list-item>

      <p id="d1e369">*E-mail: cristian.biagioni@unipi.it</p>
            </list-item>
            <list-item>

      <p id="d1e376">Tourmaline supergroup</p>
            </list-item>
            <list-item>

      <p id="d1e382">Trigonal: <inline-formula><mml:math id="M10" display="inline"><mml:mrow><mml:mi>R</mml:mi><mml:mn mathvariant="normal">3</mml:mn><mml:mi>m</mml:mi></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e400"><inline-formula><mml:math id="M11" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">15.9864</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">8</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M12" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">7.2187</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">4</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e441">6.40(42), 4.61(18), 4.24(52), 4.00(60), 2.971(61), 2.585(100), 2.048(41),
1.925(24)</p>
            </list-item>
            <list-item>

      <p id="d1e447">Type material is deposited in the mineralogical collections of the Museo di
Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy,
catalogue number 19890</p>
            </list-item>
            <list-item>

      <p id="d1e453">How to cite: Biagioni, C., Bosi, F., Mauro, D., Skogby, H., Dini, A., and
Zaccarini, F.: Dutrowite, IMA 2019-082, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,  <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<?pagebreak page210?><sec id="Ch1.S1.SSx2" specific-use="unnumbered">
  <title>IMA No. 2019-083</title>
      <p id="d1e467"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e472">Fluorapophyllite-(<inline-formula><mml:math id="M13" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">NH</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)</p>
            </list-item>
            <list-item>

      <p id="d1e489">(<inline-formula><mml:math id="M14" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">NH</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M15" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Ca</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M16" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Si</mml:mi><mml:mn mathvariant="normal">8</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">20</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M17" display="inline"><mml:mrow class="chem"><mml:mi mathvariant="normal">F</mml:mi><mml:mi mathvariant="normal" class="Radical">⚫</mml:mi><mml:mn mathvariant="normal">8</mml:mn><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e551">Vechec andesite quarry, 2.8 km SW of the Vechec village, Vranov nad Topľou
Co., Prešov Region, Slovakia (<inline-formula><mml:math id="M18" display="inline"><mml:mrow><mml:mn mathvariant="normal">48</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">51</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">09.58</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M19" display="inline"><mml:mrow><mml:mn mathvariant="normal">21</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">36</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">12.10</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> E)</p>
            </list-item>
            <list-item>

      <p id="d1e607">Martin Števko*, Jiří Sejkora, Jakub Plášil, Zdeněk
Dolníček, and Radek Škoda</p>
            </list-item>
            <list-item>

      <p id="d1e613">*E-mail: msminerals@gmail.com</p>
            </list-item>
            <list-item>

      <p id="d1e620">Apophyllite group</p>
            </list-item>
            <list-item>

      <p id="d1e626">Tetragonal: <inline-formula><mml:math id="M20" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:mn mathvariant="normal">4</mml:mn><mml:mo>/</mml:mo><mml:mi>m</mml:mi><mml:mi>n</mml:mi><mml:mi>c</mml:mi></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e650"><inline-formula><mml:math id="M21" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">8.99336</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">9</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M22" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">15.7910</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e691">7.897(31), 7.812(13), 4.547(14), 3.946(100), 2.985(39), 2.484(11),
2.010(10), 1.579(12)</p>
            </list-item>
            <list-item>

      <p id="d1e697">Type material is deposited in the collections of the Department of
Mineralogy and Petrology, National Museum in Prague, Cirkusová 1740,
19300 Prague 9, Czech Republic, catalogue number P1P 44/2019</p>
            </list-item>
            <list-item>

      <p id="d1e703">How to cite: Števko, M., Sejkora, J., Plášil, J.,
Dolníček, Z., and Škoda, R.: Fluorapophyllite-(<inline-formula><mml:math id="M23" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">NH</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>),
IMA 2019-083, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S1.SSx3" specific-use="unnumbered">
  <title>IMA No. 2019-085</title>
      <p id="d1e728"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e733">Liraite</p>
            </list-item>
            <list-item>

      <p id="d1e739"><inline-formula><mml:math id="M24" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">NaCa</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M25" display="inline"><mml:mrow class="chem"><mml:msubsup><mml:mi mathvariant="normal">Mn</mml:mi><mml:mn mathvariant="normal">2</mml:mn><mml:mrow><mml:mn mathvariant="normal">2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math></inline-formula>[<inline-formula><mml:math id="M26" display="inline"><mml:mrow class="chem"><mml:msup><mml:mi mathvariant="normal">Fe</mml:mi><mml:mrow><mml:mn mathvariant="normal">3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mi mathvariant="normal">Fe</mml:mi><mml:mrow><mml:mn mathvariant="normal">2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula>]<inline-formula><mml:math id="M27" display="inline"><mml:mrow class="chem"><mml:msubsup><mml:mi mathvariant="normal">Mn</mml:mi><mml:mn mathvariant="normal">2</mml:mn><mml:mrow><mml:mn mathvariant="normal">2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M28" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">PO</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">6</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M29" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e843">Ceferino Namuncurá pegmatite, Pocho Department, Córdoba Province,
Argentina (<inline-formula><mml:math id="M30" display="inline"><mml:mrow><mml:mn mathvariant="normal">31</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">37</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">45</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> S, <inline-formula><mml:math id="M31" display="inline"><mml:mrow><mml:mn mathvariant="normal">65</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">15</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">03</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> W)</p>
            </list-item>
            <list-item>

      <p id="d1e899">Marco E. Biglia*, Mark A. Cooper, Edward S. Grew, Jorge A. Sfragulla,
María F. Márquez-Zavalía, Alina B. Guereschi, Martin G. Yates,
and Miguel A. Galliski</p>
            </list-item>
            <list-item>

      <p id="d1e905">*E-mail: marcobiglia2002@gmail.com</p>
            </list-item>
            <list-item>

      <p id="d1e912">Wicksite group</p>
            </list-item>
            <list-item>

      <p id="d1e918">Orthorhombic: <italic>Pcab</italic>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e927"><inline-formula><mml:math id="M32" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">12.608</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">6</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M33" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">12.918</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">6</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M34" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">11.737</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">4</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e986">3.170(22), 2.927(49), 2.856(65), 2.821(25), 2.769(26), 2.745(100),
2.706(30), 2.097(29)</p>
            </list-item>
            <list-item>

      <p id="d1e992">Type material is deposited in the collections of the Mineralogy and Geology
Museo de Mineralogía y Geología Dr. A. Stelzner, Av. Vélez Sársfield 249, X5000JJC
Córdoba, Argentina, catalogue number MS003457</p>
            </list-item>
            <list-item>

      <p id="d1e998">How to cite: Biglia, M. E., Cooper, M. A., Grew, E. S., Sfragulla, J. A.,
Márquez-Zavalía, M. F., Guereschi, A. B., Yates, M. G., and Galliski,
M. A.: Liraite, IMA 2019-085, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S1.SSx4" specific-use="unnumbered">
  <title>IMA No. 2019-086</title>
      <p id="d1e1012"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e1017">Arrheniusite-(Ce)</p>
            </list-item>
            <list-item>

      <p id="d1e1023">CaMg[(<inline-formula><mml:math id="M35" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Ce</mml:mi><mml:mn mathvariant="normal">7</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Y</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M36" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Ca</mml:mi><mml:mn mathvariant="normal">5</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>]<inline-formula><mml:math id="M37" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">SiO</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M38" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Si</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">B</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">AsO</mml:mi><mml:mn mathvariant="normal">18</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)(<inline-formula><mml:math id="M39" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">BO</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M40" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">F</mml:mi><mml:mn mathvariant="normal">11</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e1117">Östanmossa mine, Norberg Municipality, Västmanland County, Sweden
(<inline-formula><mml:math id="M41" display="inline"><mml:mrow><mml:mn mathvariant="normal">60</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">05</mml:mn><mml:mo>′</mml:mo></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M42" display="inline"><mml:mrow><mml:mn mathvariant="normal">15</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">56</mml:mn><mml:mo>′</mml:mo></mml:msup></mml:mrow></mml:math></inline-formula> E – 130 m a.s.l.)</p>
            </list-item>
            <list-item>

      <p id="d1e1157">Dan Holtstam*, Luca Bindi, Hans-Jürgen Förster, Paola Bonazzi, and
Ulf B. Andersson</p>
            </list-item>
            <list-item>

      <p id="d1e1163">*E-mail: dan.holtstam@nrm.se</p>
            </list-item>
            <list-item>

      <p id="d1e1170">The Mg-As analogue of hundholmenite-(Y)</p>
            </list-item>
            <list-item>

      <p id="d1e1176">Trigonal: <inline-formula><mml:math id="M43" display="inline"><mml:mrow><mml:mi>R</mml:mi><mml:mn mathvariant="normal">3</mml:mn><mml:mi>m</mml:mi></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e1194"><inline-formula><mml:math id="M44" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">10.8082</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M45" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">27.5196</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">9</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e1235">7.739(24), 4.431(43), 3.146(51), 3.010(100), 2.976(70), 2.954(32),
2.702(46), 1. 848(24)</p>
            </list-item>
            <list-item>

      <p id="d1e1241">Type material is deposited in the mineralogical collections of the
Department of Geosciences, Swedish Museum of Natural History, Box 50007,
10405 Stockholm, Sweden, collection number GEO-NRM #19540155</p>
            </list-item>
            <list-item>

      <p id="d1e1247">How to cite: Holtstam, D., Bindi, L., Förster, H.-J., Bonazzi, P., and
Andersson, U. B.: Arrheniusite-(Ce), IMA 2019-086, in: CNMNC Newsletter 53, Eur. J. Mineral., 32, <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S1.SSx5" specific-use="unnumbered">
  <title>IMA No. 2019-087</title>
      <p id="d1e1262"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e1267">Seaborgite</p>
            </list-item>
            <list-item>

      <p id="d1e1273"><inline-formula><mml:math id="M46" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">LiK</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Na</mml:mi><mml:mn mathvariant="normal">6</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M47" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">UO</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M48" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">SO</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">5</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M49" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">SO</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:mi mathvariant="normal">OH</mml:mi></mml:mrow></mml:math></inline-formula>)(<inline-formula><mml:math id="M50" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:mrow></mml:math></inline-formula>)</p>
            </list-item>
            <list-item>

      <p id="d1e1349">Blue Lizard Mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA
(<inline-formula><mml:math id="M51" display="inline"><mml:mrow><mml:mn mathvariant="normal">37</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">33</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">26</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M52" display="inline"><mml:mrow><mml:mn mathvariant="normal">110</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">17</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">44</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> W)</p>
            </list-item>
            <list-item>

      <p id="d1e1405">Anthony R. Kampf*, Travis A. Olds, Jakub Plášil, Joe Marty, Samuel
N. Perry, Loretta Corcoran, and Peter C. Burns</p>
            </list-item>
            <list-item>

      <p id="d1e1411">*E-mail: akampf@nhm.org</p>
            </list-item>
            <list-item>

      <p id="d1e1418">New structure type</p>
            </list-item>
            <list-item>

      <p id="d1e1424">Triclinic: <inline-formula><mml:math id="M53" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:mover accent="true"><mml:mn mathvariant="normal">1</mml:mn><mml:mo mathvariant="normal">‾</mml:mo></mml:mover></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e1443"><inline-formula><mml:math id="M54" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">5.4511</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">4</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M55" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">14.487</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M56" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">15.873</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å, <inline-formula><mml:math id="M57" display="inline"><mml:mrow><mml:mi mathvariant="italic">α</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">76.295</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">5</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M58" display="inline"><mml:mrow><mml:mi mathvariant="italic">β</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">81.439</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">6</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M59" display="inline"><mml:mrow><mml:mi mathvariant="italic">γ</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">85.511</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">6</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M60" display="inline"><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e1564">14.67(97), 5.320(100), 5.093(67), 4.733(75), 3.489(65), 3.331(61),
3.078(61), 2.954(98)</p>
            </list-item>
            <list-item>

      <p id="d1e1570">Type material is deposited in the mineralogical collections of the Natural
History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles,
California 90007, USA, catalogue number 74163</p>
            </list-item>
            <list-item>

      <p id="d1e1576">How to cite: Kampf, A. R., Olds, T. A., Plášil, J., Marty, J., Perry,
S. N., Corcoran, L., and Burns, P. C.: Seaborgite, IMA 2019-087, in: CNMNC Newsletter 53, Eur. J. Mineral., 32, <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S1.SSx6" specific-use="unnumbered">
  <title>IMA No. 2019-088</title>
      <p id="d1e1590"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e1595">Adanite</p>
            </list-item>
            <list-item>

      <p id="d1e1601"><inline-formula><mml:math id="M61" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Pb</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M62" display="inline"><mml:mrow class="chem"><mml:msup><mml:mi mathvariant="normal">Te</mml:mi><mml:mrow><mml:mn mathvariant="normal">4</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)(<inline-formula><mml:math id="M63" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">SO</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)</p>
            </list-item>
            <list-item>

      <p id="d1e1647">North Star Mine, Mammoth, Tintic District, Juab Co., Utah, USA
(<inline-formula><mml:math id="M64" display="inline"><mml:mrow><mml:mn mathvariant="normal">39</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">55</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">14</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M65" display="inline"><mml:mrow><mml:mn mathvariant="normal">112</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">06</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">24</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> W – holotype); Tombstone,
Cochise Co., Arizona, USA (cotype)</p>
            </list-item>
            <list-item>

      <?pagebreak page211?><p id="d1e1703">Anthony R. Kampf*, Robert M. Housley, George R. Rossman, Hexiong Yang, and
Robert T. Downs</p>
            </list-item>
            <list-item>

      <p id="d1e1709">*E-mail: akampf@nhm.org</p>
            </list-item>
            <list-item>

      <p id="d1e1716">Known synthetic analogue</p>
            </list-item>
            <list-item>

      <p id="d1e1722">Monoclinic: <inline-formula><mml:math id="M66" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:msub><mml:mn mathvariant="normal">2</mml:mn><mml:mn mathvariant="normal">1</mml:mn></mml:msub><mml:mo>/</mml:mo><mml:mi>n</mml:mi></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e1745"><inline-formula><mml:math id="M67" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">7.3830</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M68" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">10.7545</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">5</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M69" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">9.3517</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">7</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å, <inline-formula><mml:math id="M70" display="inline"><mml:mrow><mml:mi mathvariant="italic">β</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">111.500</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">8</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M71" display="inline"><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e1829">6.744(47), 3.454(80), 3.301(100), 3.114(42), 3.048(73), 2.803(41),
2.745(44), 1.752(45)</p>
            </list-item>
            <list-item>

      <p id="d1e1835">Type material is deposited in the mineralogical collections of the Natural
History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles,
California 90007, USA, catalogue number 67505 (holotype), and the RRUFF Project,
University of Arizona, USA, deposition number R190033 (cotype)</p>
            </list-item>
            <list-item>

      <p id="d1e1841">How to cite: Kampf, A. R., Housley, R. M., Rossman, G. R., Yang, H., and Downs,
R. T.:  Adanite, IMA 2019-088, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S1.SSx7" specific-use="unnumbered">
  <title>IMA No. 2019-089</title>
      <p id="d1e1855"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e1860">Celleriite</p>
            </list-item>
            <list-item>

      <p id="d1e1866"><inline-formula><mml:math id="M72" display="inline"><mml:mi mathvariant="italic">□</mml:mi></mml:math></inline-formula>(<inline-formula><mml:math id="M73" display="inline"><mml:mrow class="chem"><mml:msubsup><mml:mi mathvariant="normal">Mn</mml:mi><mml:mn mathvariant="normal">2</mml:mn><mml:mrow><mml:mn mathvariant="normal">2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msubsup><mml:mi mathvariant="normal">Al</mml:mi></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M74" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Al</mml:mi><mml:mn mathvariant="normal">6</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M75" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Si</mml:mi><mml:mn mathvariant="normal">6</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M76" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">18</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M77" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">BO</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M78" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:mi mathvariant="normal">OH</mml:mi><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:mo>(</mml:mo><mml:mi mathvariant="normal">OH</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e1965">Rosina pegmatite, San Piero in Campo, Campo nell'Elba (LI), Elba,
Tuscany, Italy</p>
            </list-item>
            <list-item>

      <p id="d1e1971">Ferdinando Bosi*, Federico Pezzotta, Alessandra Altieri, Giovanni B.
Andreozzi, Paolo Ballirano, and Gioacchino Tempesta</p>
            </list-item>
            <list-item>

      <p id="d1e1977">*E-mail: ferdinando.bosi@uniroma1.it</p>
            </list-item>
            <list-item>

      <p id="d1e1984">Tourmaline supergroup</p>
            </list-item>
            <list-item>

      <p id="d1e1990">Trigonal: <inline-formula><mml:math id="M79" display="inline"><mml:mrow><mml:mi>R</mml:mi><mml:mn mathvariant="normal">3</mml:mn><mml:mi>m</mml:mi></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e2008"><inline-formula><mml:math id="M80" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">15.9518</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">4</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M81" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">7.1579</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">2</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e2049">6.345(45), 4.210(60), 3.983(88), 3.453(55), 2.942(55), 2.573(100),
2.036(38), 1.913(26)</p>
            </list-item>
            <list-item>

      <p id="d1e2055">Type material is deposited in the mineralogical collections of the Museo
Universitario di Scienze della Terra, Sapienza Università di Roma, P.le
Aldo Moro, 5, 00185 Rome, Italy, catalogue number 33287/403 (holotype), and
the Museo Civico di Storia Naturale, Corso Venezia 55, 20121 Milan, Italy,
catalogue number M38847 (cotype)</p>
            </list-item>
            <list-item>

      <p id="d1e2061">How to cite: Bosi, F., Pezzotta, F., Altieri, A., Andreozzi, G. B.,
Ballirano, P., and Tempesta, G.: Celleriite, IMA 2019-089, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S1.SSx8" specific-use="unnumbered">
  <title>IMA No. 2019-090</title>
      <p id="d1e2075"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e2080">Grammatikopoulosite</p>
            </list-item>
            <list-item>

      <p id="d1e2086">NiVP</p>
            </list-item>
            <list-item>

      <p id="d1e2092">Agios Stefanos mine, ca. 10 km S of the Domokos village, Othrys ophiolite,
Greece (<inline-formula><mml:math id="M82" display="inline"><mml:mrow><mml:mn mathvariant="normal">39</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">04</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">59</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M83" display="inline"><mml:mrow><mml:mn mathvariant="normal">22</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">25</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">59</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> E)</p>
            </list-item>
            <list-item>

      <p id="d1e2148">Luca Bindi*, Federica Zaccarini, Elena Ifandi, Basilios Tsikouras, Chris J.
Stanley, Giorgio Garuti, and Daniela Mauro</p>
            </list-item>
            <list-item>

      <p id="d1e2154">*E-mail: luca.bindi@unifi.it</p>
            </list-item>
            <list-item>

      <p id="d1e2161">Structurally related to florenskyite</p>
            </list-item>
            <list-item>

      <p id="d1e2167">Orthorhombic: <italic>Pnma</italic>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e2176"><inline-formula><mml:math id="M84" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">5.8893</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">8</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M85" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">3.5723</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">4</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M86" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">6.8146</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">9</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e2235">2.950(20), 2.785(25), 2.273(60), 2.157(100), 2.118(25), 1.915(15),
1.824(15), 1.784(20)</p>
            </list-item>
            <list-item>

      <p id="d1e2241">Type material is deposited in the mineralogical collections of the Museo di
Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy,
catalogue number 19911</p>
            </list-item>
            <list-item>

      <p id="d1e2247">How to cite: Bindi, L., Zaccarini, F., Ifandi, E., Tsikouras, B., Stanley,
C. J., Garuti, G., and Mauro, D.: Grammatikopoulosite, IMA 2019-090,
in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S1.SSx9" specific-use="unnumbered">
  <title>IMA No. 2019-091</title>
      <p id="d1e2261"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e2266">Ellinaite</p>
            </list-item>
            <list-item>

      <p id="d1e2272"><inline-formula><mml:math id="M87" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">CaCr</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e2292">In paralavas in the Halamish and Zohar wadi, southern part of the Hatrurim
Basin, Israel (<inline-formula><mml:math id="M88" display="inline"><mml:mrow><mml:mn mathvariant="normal">31</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">09</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">47</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M89" display="inline"><mml:mrow><mml:mn mathvariant="normal">35</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">17</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">57</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> E – holotype);
as mineral phase of an inclusion within diamond, collected from gravel of
Sorriso creek, a tributary of Aripuanã River, Mato Grosso,
Brazil (<inline-formula><mml:math id="M90" display="inline"><mml:mrow><mml:mn mathvariant="normal">11</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">20</mml:mn><mml:mo>′</mml:mo></mml:msup></mml:mrow></mml:math></inline-formula> S, <inline-formula><mml:math id="M91" display="inline"><mml:mrow><mml:mn mathvariant="normal">59</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">11</mml:mn><mml:mo>′</mml:mo></mml:msup></mml:mrow></mml:math></inline-formula> W – cotype).</p>
            </list-item>
            <list-item>

      <p id="d1e2382">Victor V. Sharygin*, Sergey N. Britvin, Felix V. Kaminsky, Richard Wirth,
Elena N. Nigmatulina, Grigory A. Yakovlev, Konstantin A. Novoselov, and
Mikhail N. Murashko</p>
            </list-item>
            <list-item>

      <p id="d1e2388">*E-mail: sharygin@igm.nsc.ru</p>
            </list-item>
            <list-item>

      <p id="d1e2395">The Cr analogue of harmunite</p>
            </list-item>
            <list-item>

      <p id="d1e2401">Orthorhombic: <italic>Pnma</italic>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e2410"><inline-formula><mml:math id="M92" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">8.868</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">9</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M93" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">2.885</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M94" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">10.355</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">11</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e2469">4.434(23), 2.589(54), 2.567(100), 2.424(69), 2.418(62), 2.148(34),
1.767(35), 1.758(22)</p>
            </list-item>
            <list-item>

      <p id="d1e2475">Type material is deposited in the collections of the Fersman Mineralogical
Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071,
Russia, registration number 5439/1 (holotype), the Central Siberian
Geological Museum, V.S. Sobolev Institute of Geology and Mineralogy, Siberian
Branch of the RAS, prospekt Akademika Koptyuga 3, Novosibirsk 630090,
Russia, catalogue number VII-102/1 (holotype), and the Vernadsky Institute
of Geochemistry and Analytical Chemistry, Kosygin St. 19, Moscow 119334,
Russia, F.V. Kaminsky collection, catalogue number 8/108 (cotype)</p>
            </list-item>
            <list-item>

      <p id="d1e2481">How to cite: Sharygin, V. V., Britvin, S. N., Kaminsky, F. V., Wirth, R.,
Nigmatulina, E. N., Yakovlev, G. A., Novoselov, K. A., and Murashko, M. N.: Ellinaite, IMA 2019-091, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<?pagebreak page212?><sec id="Ch1.S1.SSx10" specific-use="unnumbered">
  <title>IMA No. 2019-029a</title>
      <p id="d1e2495"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e2500">Michitoshiite-(Cu)</p>
            </list-item>
            <list-item>

      <p id="d1e2506">Rh(<inline-formula><mml:math id="M95" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Cu</mml:mi><mml:mrow><mml:mn mathvariant="normal">1</mml:mn><mml:mo>-</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="normal">Ge</mml:mi><mml:mi>x</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula>)    <inline-formula><mml:math id="M96" display="inline"><mml:mrow><mml:mn mathvariant="normal">0</mml:mn><mml:mo>&lt;</mml:mo><mml:mi>x</mml:mi><mml:mo>≤</mml:mo><mml:mn mathvariant="normal">0.5</mml:mn></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e2548">Haraigawa, Misato machi, Kumamoto Prefecture, Kyushu, Japan</p>
            </list-item>
            <list-item>

      <p id="d1e2554">Takahiro Tanaka*, Tadashi Shinmachi, Kota Kataoka, and Daisuke Nishio-Hamane</p>
            </list-item>
            <list-item>

      <p id="d1e2560">*E-mail: penta@kuh.biglobe.ne.jp</p>
            </list-item>
            <list-item>

      <p id="d1e2567">CsCl-type structure</p>
            </list-item>
            <list-item>

      <p id="d1e2573">Cubic: <inline-formula><mml:math id="M97" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:mi>m</mml:mi><mml:mover accent="true"><mml:mn mathvariant="normal">3</mml:mn><mml:mo mathvariant="normal">‾</mml:mo></mml:mover><mml:mi>m</mml:mi></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e2595"><inline-formula><mml:math id="M98" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">2.977</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e2618">2.103(100), 1.717(3), 1.487(15), 1.332(6), 1.216(70)</p>
            </list-item>
            <list-item>

      <p id="d1e2624">Type material is deposited in the mineralogical collections of the National
Museum of Nature and Science, Tsukuba, Japan, specimen number NSM-46298
(holotype) and NSM-16299 (cotype)</p>
            </list-item>
            <list-item>

      <p id="d1e2630">How to cite: Tanaka, T., Shinmachi, T., Kataoka, K., and Nishio-Hamane, D.: Michitoshiite-(Cu), IMA 2019-029a, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
</sec>
<sec id="Ch1.S2">
  <label>2</label><title>New mineral proposals approved in January 2020</title>
<sec id="Ch1.S2.SSx1" specific-use="unnumbered">
  <title>IMA No. 2019-093</title>
      <p id="d1e2652"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e2657">Hagstromite</p>
            </list-item>
            <list-item>

      <p id="d1e2663"><inline-formula><mml:math id="M99" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Pb</mml:mi><mml:mn mathvariant="normal">8</mml:mn></mml:msub><mml:msup><mml:mi mathvariant="normal">Cu</mml:mi><mml:mrow><mml:mn mathvariant="normal">2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:mo>(</mml:mo><mml:msup><mml:mi mathvariant="normal">Te</mml:mi><mml:mrow><mml:mn mathvariant="normal">6</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">6</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(<inline-formula><mml:math id="M100" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">CO</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M101" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Cl</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e2728">SW cut (<inline-formula><mml:math id="M102" display="inline"><mml:mrow><mml:mn mathvariant="normal">35</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">16</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">20</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M103" display="inline"><mml:mrow><mml:mn mathvariant="normal">116</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">06</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">04</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> W – holotype) and
Bird Nest drift (<inline-formula><mml:math id="M104" display="inline"><mml:mrow><mml:mn mathvariant="normal">35</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">16</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">36</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M105" display="inline"><mml:mrow><mml:mn mathvariant="normal">116</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">06</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">01</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> W – cotype),
Otto Mountain, 2.5 km WNW of Baker, San Bernardino Co., California, USA</p>
            </list-item>
            <list-item>

      <p id="d1e2834">Anthony R. Kampf*, Robert M. Housley, Stuart J. Mills, George R. Rossman, and
Joe Marty</p>
            </list-item>
            <list-item>

      <p id="d1e2840">*E-mail: akampf@nhm.org</p>
            </list-item>
            <list-item>

      <p id="d1e2847">New structure type</p>
            </list-item>
            <list-item>

      <p id="d1e2853">Orthorhombic: <italic>Ibam</italic>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e2862"><inline-formula><mml:math id="M106" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">23.688</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">17</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M107" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">9.026</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">8</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M108" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">10.461</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">8</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e2921">3.927(80), 3.423(26), 3.286(44), 2.967(100), 2.601(70), 2.230(23),
1.964(66), 1.846(19)</p>
            </list-item>
            <list-item>

      <p id="d1e2927">Type material is deposited in the mineralogical collections of the Natural
History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles,
California 90007, USA, catalogue numbers 73596 (holotype) and 73597 (cotype)</p>
            </list-item>
            <list-item>

      <p id="d1e2933">How to cite: Kampf, A. R., Housley, R. M., Mills, S. J., Rossman, G. R., and
Marty, J.: Hagstromite, IMA 2019-093, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S2.SSx2" specific-use="unnumbered">
  <title>IMA No. 2019-095</title>
      <p id="d1e2947"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e2952">Waipouaite</p>
            </list-item>
            <list-item>

      <p id="d1e2958"><inline-formula><mml:math id="M109" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Ca</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:msubsup><mml:mi mathvariant="normal">V</mml:mi><mml:mn mathvariant="normal">5</mml:mn><mml:mrow><mml:mn mathvariant="normal">4</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M110" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">9</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>[<inline-formula><mml:math id="M111" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Si</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">5</mml:mn></mml:msub><mml:mo>(</mml:mo><mml:mi mathvariant="normal">OH</mml:mi></mml:mrow></mml:math></inline-formula>)<inline-formula><mml:math id="M112" display="inline"><mml:msub><mml:mi/><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:math></inline-formula>][<inline-formula><mml:math id="M113" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Si</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">7</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>(OH)<inline-formula><mml:math id="M114" display="inline"><mml:msub><mml:mi/><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:math></inline-formula>]<inline-formula><mml:math id="M115" display="inline"><mml:mrow class="chem"><mml:mi class="Radical" mathvariant="normal">⚫</mml:mi><mml:mn mathvariant="normal">11</mml:mn><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e3065">Aranga Quarry, Aranga, Kaipara District, Northland Region, New Zealand
(<inline-formula><mml:math id="M116" display="inline"><mml:mrow><mml:mn mathvariant="normal">35</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">44</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">06</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> S, <inline-formula><mml:math id="M117" display="inline"><mml:mrow><mml:mn mathvariant="normal">173</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">34</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">47</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> E)</p>
            </list-item>
            <list-item>

      <p id="d1e3121">Peter Elliott* and Anthony R. Kampf</p>
            </list-item>
            <list-item>

      <p id="d1e3127">*E-mail: peter.elliott@adelaide.edu.au</p>
            </list-item>
            <list-item>

      <p id="d1e3134">New structure type</p>
            </list-item>
            <list-item>

      <p id="d1e3140">Monoclinic: <inline-formula><mml:math id="M118" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:msub><mml:mn mathvariant="normal">2</mml:mn><mml:mn mathvariant="normal">1</mml:mn></mml:msub><mml:mo>/</mml:mo><mml:mi>c</mml:mi></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e3163"><inline-formula><mml:math id="M119" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">12.843</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M120" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">23.589</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">5</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M121" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">11.560</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">2</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å, <inline-formula><mml:math id="M122" display="inline"><mml:mrow><mml:mi mathvariant="italic">β</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">115.54</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M123" display="inline"><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e3247">11.78(100), 9.54(16), 7.85(19), 6.29(32), 5.92(31), 5.22(21), 3.140(18),
2.850(17)</p>
            </list-item>
            <list-item>

      <p id="d1e3253">Type material is deposited in the mineralogical collections of the South
Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia,
registration number G34802</p>
            </list-item>
            <list-item>

      <p id="d1e3259">How to cite: Elliott, P. and Kampf, A. R.: Waipouaite, IMA 2019-095,
in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S2.SSx3" specific-use="unnumbered">
  <title>IMA No. 2019-096</title>
      <p id="d1e3273"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e3278">Eliopoulosite</p>
            </list-item>
            <list-item>

      <p id="d1e3284"><inline-formula><mml:math id="M124" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">V</mml:mi><mml:mn mathvariant="normal">7</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn mathvariant="normal">8</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e3304">Agios Stefanos mine, ca. 10 km S of the Domokos village, Othrys ophiolite,
Greece (<inline-formula><mml:math id="M125" display="inline"><mml:mrow><mml:mn mathvariant="normal">39</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">04</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">59</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M126" display="inline"><mml:mrow><mml:mn mathvariant="normal">22</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">25</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">59</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> E)</p>
            </list-item>
            <list-item>

      <p id="d1e3360">Luca Bindi*, Federica Zaccarini, Paola Bonazzi, Tassos Grammatikopoulos,
Basilios Tsikouras, Chris J. Stanley, and Giorgio Garuti</p>
            </list-item>
            <list-item>

      <p id="d1e3366">*E-mail: luca.bindi@unifi.it</p>
            </list-item>
            <list-item>

      <p id="d1e3373">Known synthetic analogue</p>
            </list-item>
            <list-item>

      <p id="d1e3379">Trigonal: <inline-formula><mml:math id="M127" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:msub><mml:mn mathvariant="normal">3</mml:mn><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mn mathvariant="normal">21</mml:mn></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e3400"><inline-formula><mml:math id="M128" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">6.689</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M129" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">17.403</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">6</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å</p>
            </list-item>
            <list-item>

      <p id="d1e3441">2.896(29), 2.591(45), 2.049(100), 1.672(40), 1.608(10), 1.296(20),
1.096(15), 1.024(12)</p>
            </list-item>
            <list-item>

      <p id="d1e3447">Type material is deposited in the mineralogical collections of the Museo di
Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy,
catalogue number 19911</p>
            </list-item>
            <list-item>

      <p id="d1e3453">How to cite: Bindi, L., Zaccarini, F., Bonazzi, P., Grammatikopoulos, T.,
Tsikouras, B., Stanley, C. J., and Garuti, G.: Eliopoulosite, IMA
2019-096, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S2.SSx4" specific-use="unnumbered">
  <title>IMA No. 2019-097</title>
      <p id="d1e3467"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e3472">Kesebolite-(Ce)</p>
            </list-item>
            <list-item>

      <p id="d1e3478"><inline-formula><mml:math id="M130" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">CeCa</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mi mathvariant="normal">Mn</mml:mi><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">AsO</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub><mml:mo>)</mml:mo><mml:mo>(</mml:mo><mml:msub><mml:mi mathvariant="normal">SiO</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e3516">Kesebol Mn-(Fe-Cu) deposit, Åmål Municipality, Västra
Götaland, Sweden (<inline-formula><mml:math id="M131" display="inline"><mml:mrow><mml:mn mathvariant="normal">58</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">59</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">04</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> N, <inline-formula><mml:math id="M132" display="inline"><mml:mrow><mml:mn mathvariant="normal">12</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">31</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">47</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> E – 130 m a.s.l.)</p>
            </list-item>
            <list-item>

      <?pagebreak page213?><p id="d1e3572">Dan Holtstam*, Luca Bindi, Andreas Karlsson, Jörgen Langhof, Thomas
Zack, Paola Bonazzi, and Anders Persson</p>
            </list-item>
            <list-item>

      <p id="d1e3578">*E-mail: dan.holtstam@nrm.se</p>
            </list-item>
            <list-item>

      <p id="d1e3585">New structure type</p>
            </list-item>
            <list-item>

      <p id="d1e3591">Monoclinic: <inline-formula><mml:math id="M133" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:msub><mml:mn mathvariant="normal">2</mml:mn><mml:mn mathvariant="normal">1</mml:mn></mml:msub><mml:mo>/</mml:mo><mml:mi>c</mml:mi></mml:mrow></mml:math></inline-formula>; structure determined</p>
            </list-item>
            <list-item>

      <p id="d1e3614"><inline-formula><mml:math id="M134" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">6.7382</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M135" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">13.0368</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">6</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M136" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">12.0958</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">6</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula> Å, <inline-formula><mml:math id="M137" display="inline"><mml:mrow><mml:mi mathvariant="italic">β</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">98.578</mml:mn><mml:mo>(</mml:mo><mml:mn mathvariant="normal">2</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M138" display="inline"><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e3698">6.50(22), 5.96(54), 5.70(42), 3.228(58), 3.138(84), 3.114(100), 2.924(84),
2.908(63)</p>
            </list-item>
            <list-item>

      <p id="d1e3704">Type material is deposited in the mineralogical collections of the
Department of Geosciences, Swedish Museum of Natural History, Box 50007,
10405 Stockholm, Sweden, collection number GEO-NRM #20100343</p>
            </list-item>
            <list-item>

      <p id="d1e3710">How to cite: Holtstam, D., Bindi, L., Karlsson, A., Langhof, J., Zack, T.,
Bonazzi, P., and Persson, A.: Kesebolite-(Ce), IMA 2019-097, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
<sec id="Ch1.S2.SSx5" specific-use="unnumbered">
  <title>IMA No. 2019-099</title>
      <p id="d1e3725"><list list-content="plainlist" list-type="simple">
            <list-item>

      <p id="d1e3730">Ramosite</p>
            </list-item>
            <list-item>

      <p id="d1e3736"><inline-formula><mml:math id="M139" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Pb</mml:mi><mml:mn mathvariant="normal">25.7</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Sn</mml:mi><mml:mn mathvariant="normal">8.3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Mn</mml:mi><mml:mn mathvariant="normal">3.4</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Sb</mml:mi><mml:mn mathvariant="normal">6.4</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn mathvariant="normal">56.2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></p>
            </list-item>
            <list-item>

      <p id="d1e3771">Uchucchacua polymetallic deposit, Oyón District, Catajambo, Lima department,
Peru (<inline-formula><mml:math id="M140" display="inline"><mml:mrow><mml:mn mathvariant="normal">10</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">37</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">23</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> S, <inline-formula><mml:math id="M141" display="inline"><mml:mrow><mml:mn mathvariant="normal">76</mml:mn><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">41</mml:mn><mml:mo>′</mml:mo></mml:msup><mml:msup><mml:mn mathvariant="normal">17</mml:mn><mml:mrow><mml:mo>′</mml:mo><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula> W)</p>
            </list-item>
            <list-item>

      <p id="d1e3827">Frank N. Keutsch*, Shao-Liang Zheng, Dan Topa, and Chris Stanley</p>
            </list-item>
            <list-item>

      <p id="d1e3833">*E-mail: keutsch@seas.harvard.edu</p>
            </list-item>
            <list-item>

      <p id="d1e3840">The Mn analogue of franckeite</p>
            </list-item>
            <list-item>

      <p id="d1e3846">Monoclinic: <inline-formula><mml:math id="M142" display="inline"><mml:mrow><mml:mi>C</mml:mi><mml:mn mathvariant="normal">2</mml:mn><mml:mo>/</mml:mo><mml:mi>m</mml:mi></mml:mrow></mml:math></inline-formula> (Q-slab), <inline-formula><mml:math id="M143" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:msub><mml:mn mathvariant="normal">2</mml:mn><mml:mn mathvariant="normal">1</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula> (H-slab)</p>
            </list-item>
            <list-item>

      <p id="d1e3879"><inline-formula><mml:math id="M144" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">5.82</mml:mn></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M145" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">5.92</mml:mn></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M146" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">17.65</mml:mn></mml:mrow></mml:math></inline-formula> Å, <inline-formula><mml:math id="M147" display="inline"><mml:mrow><mml:mi mathvariant="italic">β</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">99.1</mml:mn></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M148" display="inline"><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup></mml:math></inline-formula>
(Q-slab)</p>
            </list-item>
            <list-item>

      <p id="d1e3940"><inline-formula><mml:math id="M149" display="inline"><mml:mrow><mml:mi>a</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">6.23</mml:mn></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M150" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">3.69</mml:mn></mml:mrow></mml:math></inline-formula>, <inline-formula><mml:math id="M151" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">17.59</mml:mn></mml:mrow></mml:math></inline-formula> Å, <inline-formula><mml:math id="M152" display="inline"><mml:mrow><mml:mi mathvariant="italic">β</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="normal">93.3</mml:mn></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M153" display="inline"><mml:msup><mml:mi/><mml:mo>∘</mml:mo></mml:msup></mml:math></inline-formula>
(H-slab)</p>
            </list-item>
            <list-item>

      <p id="d1e4001">3.48–3.59(58), 3.23–3.32(13), 3.13–3.20(4), 2.86–3.09(100), 2.54–2.59(7),
2.36–2.42(14), 2.18–2.25(73), 1.96–2.07(43)</p>
            </list-item>
            <list-item>

      <p id="d1e4007">Type material is deposited in the mineralogical collections of the
Naturhistorisches Museum Wien, Burgring 7, 1010 Vienna, Austria, catalogue number
O1798, and the Mineralogical &amp; Geological Museum, Harvard University,
Cambridge, Massachusetts 02138, USA, specimen numbers 2019.18.1 and 2019.18.2</p>
            </list-item>
            <list-item>

      <p id="d1e4014">How to cite: Keutsch, F. N., Zheng, S.-L., Topa, D., and Stanley, C.:
Ramosite, IMA 2019-099, in: CNMNC Newsletter 53, Eur. J. Mineral., 32,   <ext-link xlink:href="https://doi.org/10.5194/ejm-32-209-2020" ext-link-type="DOI">10.5194/ejm-32-209-2020</ext-link>, 2020.</p>
            </list-item>
          </list></p>
</sec>
</sec>
<sec id="Ch1.S3">
  <label>3</label><title>Nomenclature/classification proposals approved in December 2019</title>
<sec id="Ch1.S3.SSx1" specific-use="unnumbered">
  <title>IMA 19-G: discreditation of ferrotellurite</title>
      <p id="d1e4036">Proposal 19-G is accepted, and the ill-defined mineral ferrotellurite is
discredited. Indeed, this species has been shown to be equivalent to
keystoneite, <inline-formula><mml:math id="M154" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Mg</mml:mi><mml:mn mathvariant="normal">0.5</mml:mn></mml:msub><mml:msup><mml:mi mathvariant="normal">NiFe</mml:mi><mml:mrow><mml:mn mathvariant="normal">3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math></inline-formula><inline-formula><mml:math id="M155" display="inline"><mml:mrow class="chem"><mml:mo>(</mml:mo><mml:msup><mml:mi mathvariant="normal">Te</mml:mi><mml:mrow><mml:mn mathvariant="normal">4</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">3</mml:mn></mml:msub><mml:mi mathvariant="normal" class="Radical">⚫</mml:mi><mml:mn mathvariant="normal">4.5</mml:mn><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:mrow></mml:math></inline-formula>.</p>
</sec>
<sec id="Ch1.S3.SSx2" specific-use="unnumbered">
  <title>IMA 19-H: discreditation of heliophyllite</title>
      <?pagebreak page214?><p id="d1e4100">Proposal 19-H is accepted, and heliophyllite is discredited. This species is
identical to ecdemite, <inline-formula><mml:math id="M156" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Pb</mml:mi><mml:mn mathvariant="normal">6</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">As</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">7</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Cl</mml:mi><mml:mn mathvariant="normal">4</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>.
<?xmltex \hack{\newpage}?></p>
</sec>
</sec>
<sec id="Ch1.S4">
  <label>4</label><title>Revised chemical formula</title>
      <p id="d1e4139">A paper on the mineral ilmajokite has been recently published (IUCrJ, 7, 2020; 121–128) in which the ideal chemical formula of the mineral is given as
<inline-formula><mml:math id="M157" display="inline"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">Na</mml:mi><mml:mn mathvariant="normal">11</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">KBaCe</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Ti</mml:mi><mml:mn mathvariant="normal">12</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Si</mml:mi><mml:mn mathvariant="normal">37.5</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">94</mml:mn></mml:msub><mml:mo>(</mml:mo><mml:mi mathvariant="normal">OH</mml:mi><mml:msub><mml:mo>)</mml:mo><mml:mn mathvariant="normal">31</mml:mn></mml:msub><mml:mi class="Radical" mathvariant="normal">⚫</mml:mi><mml:mn mathvariant="normal">29</mml:mn><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:mrow></mml:math></inline-formula>. With respect to the previously accepted formula, there is a new
chemical element (K); moreover Ba and Ce, which were previously put together
with Na as subordinate cations, acquire now the status of species-forming
constituents, as the structural study clearly indicates that they are
partitioned at specific crystallographic sites. These data were examined
carefully by the CNMNC officers and were considered reliable. Accordingly it
was agreed to modify the formula of the mineral in the official IMA List of
Minerals. Moreover, the occurrence of a REE as a species-forming element
implies the renaming of ilmajokite to ilmajokite-(Ce).</p>
</sec>

    
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