IMA no. 2019-070a

• Králíkite

• BaCl₂ ⋅ 2H₂O

• Kke

• Mining Plant I, ČSA Mine (Jan Karel), crosscut 0930, Karviná, Upper Silesian Basin, Czech Republic (49°50^′35^′′ N, 18°29^′47^′′ E)

• Dalibor Matýsek, Jakub Jirásek^*, Juraj Majzlan, Jan Filip, and Michal Osovský

• ^* E-mail: jakub.jirasek@upol.cz

• Known synthetic analogue

• Monoclinic: P2₁/n

• a=6.7225(8), b=10.906(1), c=7.1301(8) Å, β=91.101(6)°

• 5.429(80), 4.919(55), 4.474(37), 4.413(100), 3.379(49), 2.541(73), 2.404(39), 2.083(42)

• Type material is deposited in the collections of the Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, Prague 9, Czech Republic, catalogue number P1P 19/2019, and the Department of Mineralogy and Petrography, Moravian Museum, Zelný trh 6, Brno, Czech Republic, catalogue number A11366

• How to cite: Matýsek, D., Jirásek, J., Majzlan, J., Filip, J., and Osovský, M.: Králíkite, IMA 2019-070a, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2023-127a

• Heimaeyite

• Na₃Al(SO₄)₃

• Hme

• Fumarolic vent on the northern edge of crater of Eldfell volcano, Heimaey Island, Iceland (63°25^′50^′′ N, 20°14^′48^′′ W)

• Tonči Balić-Žunić^*, Anna Garavelli, Donatella Mitolo, Fabrizio Nestola, Martha G. Pamato, and Maja B. Rasmussen

• ^* E-mail: toncib@ign.ku.dk

• Known synthetic analogue

• Trigonal: $R\stackrel{\mathrm{‾}}{\mathrm{3}}$; structure determined

• a=13.4326(9), c=8.9818(7) Å

• 6.68(40), 4.16(17), 3.92(32), 3.13(100), 3.02(55), 2.72(10), 2.55(11), 2.026(10)

• Type material is deposited in the collections of the Icelandic Institute of Natural History, 6–8, Urriðaholtsstræti 210, Garðabær, Iceland, sample number NI-30218

• How to cite: Balić-Žunić, T., Garavelli, A., Mitolo, D., Nestola, F., Pamato, M. G., and Rasmussen, M. B.: Heimaeyite, IMA 2023-127a, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-022

• Cuprosenandorite

• Ag₁₆Cu₈Pb₂₄Sb₇₂S₁₄₄

• Csado

• San José deposit, Oruro, Bolivia (17°57^′39^′′ S, 67°07^′30^′′ W)

• Dan Topa^*, Berthold Stoeger, Frank Keutsch, and Chris Stanley

• ^* E-mail: dan.topa@nhm-wien.ac.at

• Chemically and structurally related to senandorite

• Orthorhombic: Pna2₁; structure determined

• a=13.0146(2), b=25.5576(4), c=19.0936(2) Å

• 3.727(43), 3.416(64), 3.294(100), 3.002(34), 2.896(64), 2.743(38), 2.130(26), 2.056(27)

• Type material is deposited in the collections of the Mineralogisch-Petrographische Abteilung, Naturhistorisches Museum, Burgring 7, 1010 Vienna, Austria, catalogue number O 3072

• How to cite: Topa, D., Stoeger, B., Keutsch, F., and Stanley, C.: Cuprosenandorite, IMA 2024-022, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-024

• Zincostottite

• ZnGe(OH)₆

• Zsto

• Tsumeb mine, Tsumeb, Namibia (19°15^′ S, 17°42^′ E)

• Anthony R. Kampf^*, Joy Désor, Chi Ma, Mark D. Welch, and Gerhard Möhn

• ^* E-mail: akampf@nhm.org

• The Zn analogue of stottite

• Tetragonal: P4₂/n; structure determined

• a=7.452(2), c=7.4000(8) Å

• 3.719(100), 2.630(45), 2.146(15), 1.860(20), 1.663(51), 1.518(37), 1.237(12), 1.121(11)

• Type material is deposited in the collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 76278 (holotype) and 76279 (cotype)

• How to cite: Kampf, A. R., Désor, J., Ma, C., Welch, M. D., and Möhn, G.: Zincostottite, IMA 2024-024, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-026

• Oxyplumbopyrochlore

• Pb₂Nb₂O₆O

• Oppcl

• Bayan Obo mine, Inner Mongolia, China (41°48^′50^′′ N, 110°00^′41^′′ E)

• Li Yang, Haiyang Xian, Jianxi Zhu^*, Yiping Yang, Shan Li, Jiaxin Xi, Bo Yang, Wenxiang Meng, Xiaoju Lin, Junfang Yu, Yuhuan Yuan, Yonggang Zhao, Guoying Yan, Jianyong Liu, Zhenyu Chen, Hongping He, and Xianhua Li

• ^*E-mail: zhujx@gig.ac.cn

• Pyrochlore supergroup

• Cubic: Fd$\stackrel{\mathrm{‾}}{\mathrm{3}}m$; structure determined

• a=10.607(1) Å

• 3.062(76), 2.656(14), 2.039(8), 1.870(100), 1.594(44), 1.525(8), 1.320(6), 1.178(9)

• Type material is deposited in the collections of the Geological Museum, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Tianhe, Kehua Street 511, Guangzhou 510640, People's Republic of China, catalogue number Bayan-Obo-W2-OPb-pcl

• How to cite: Yang, L., Xian, H., Zhu, J., Yang, Y., Li, S., Xi, J., Yang, B., Meng, W., Lin, X., Yu, J., Yuan, Y., Zhao, Y., Yan, G., Liu, J., Chen, Z., He, H., and Li, X.: Oxyplumbopyrochlore, IMA 2024-005, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-028

• Moiraite

• Pb₁₂Sb₈As₈S₃₆

• Moir

• Madoc, Hastings County, Ontario, Canada (43°42^′17^′′ N, 79°44^′57^′′ W)

• Dan Topa^*, Berthold Stoeger, Frank Keutsch, and Chris Stanley

• ^* E-mail: dan.topa@nhm-wien.ac.at

• Sartorite homologue series

• Triclinic: $P\stackrel{\mathrm{‾}}{\mathrm{1}}$; structure determined

• a=8.3726(2), b=15.8995(4), c=23.2249(6) Å, α=96.897(2), β=90.015(2), γ=89.624(2)°

• 3.879 (75), 3.814(68), 3.294(95), 3.201(63), 3.190(72), 3.088(79), 2.779(64), 2.093(100)

• Type material is deposited in the collections of the Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Canada, catalogue number 12169 (holotype), and the Mineralogisch-Petrographische Abteilung, Naturhistorisches Museum, Burgring 7, 1010 Vienna, Austria, catalogue number O 3111 (cotype)

• How to cite: Topa, D., Stoeger, B., Keutsch, F., and Stanley, C.: Moiraite, IMA 2024-027, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-029

• Ferroinnelite

• Ba₄Ti₂Na(NaFe²⁺)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)]

• Finn

• Phlogopite deposit, Kovdor massif, Kola Peninsula, Russia (67°35^′21^′′ N, 30°28^′04^′′ E)

• Elena Sokolova^*, Fernando Cámara, Frank C. Hawthorne, Giancarlo Della Ventura, and Simone Bernardini

• ^* E-mail: elena.sokolova@umanitoba.ca

• Seidozerite supergroup

• Triclinic: $P\stackrel{\mathrm{‾}}{\mathrm{1}}$; structure determined

• a=5.3994(8), b=7.0924(1), c=14.7345(4) Å, α=98.409(2), β=94.327(2), γ=90.013(1)°

• 14.55(38), 3.934(22), 3.353(56), 2.776(19), 2.694(100), 2.250(17), 2.124(46), 2.055(17)

• Type material is deposited in the collections of the Department of Natural History, Royal Ontario Museum, 100 Queens Park, Toronto, ON M5S2C6, Canada, catalogue number M61038

• How to cite: Sokolova, E., Cámara, F., Hawthorne, F. C., Della Ventura, G., and Bernardini, S.: Ferroinnelite, IMA 2024-029, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-030

• Yellowcatite

• KNaFe${}_{\mathrm{2}}^{\mathrm{3}+}$(Se⁴⁺O₃)₂(V${}_{\mathrm{2}}^{\mathrm{5}+}$O₇) ⋅ 7H₂O

• Yel

• School Section #32 mine, Thompson District (a.k.a. Yellow Cat District), Grand Co., Utah, USA (38°51^′11^′′ N, 109°30^′15^′′ W)

• Anthony R. Kampf^*, Travis A. Olds, Chi Ma, and Joe Marty

• ^* E-mail: akampf@nhm.org

• New structure type

• Hexagonal: $P\stackrel{\mathrm{‾}}{\mathrm{6}}m$2; structure determined

• a=5.4966(7), c=17.211(2) Å

• 17.15(100), 6.859(61), 5.736(34), 4.167(69), 3.193(82), 2.777(43), 2.730(57), 1.592(32)

• Type material is deposited in the collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 76356 (holotype), 76357 (cotype), and 76358 (cotype)

• How to cite: Kampf, A. R., Olds, T. A., Ma, C., and Marty, J.: Yellowcatite, IMA 2024-030, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-031

• Shenganfuite

• PbTe${}_{\mathrm{3}}^{\mathrm{4}+}$O₅(OH)Cl₃(H₂O)

• Sgf

• Moctezuma mine, Moctezuma, Sonora, Mexico (29°48^′ N, 109°40^′ W)

• Hexiong Yang^*, Xiangping Gu, Guang Fan, Anthony R. Kampf, Brent Thorne, Ronald B. Gibbs, and Robert T. Downs

• ^* E-mail: hyang@arizona.edu

• New structure type

• Triclinic: $P\stackrel{\mathrm{‾}}{\mathrm{1}}$; structure determined

• a=7.2243(1), b=7.4975(2), c=11.1856(2) Å, α=102.349(2), β=93.408(2), γ=106.407(2)°

• 9.558(100), 9.230(41), 7.228(27), 6.332(28), 4.896(13), 3.606(20), 3.183(21), 3.108(14)

• Type material is deposited in the collections of the University of Arizona Alfie Norville Gem & Mineral Museum, 115 N Church Ave Ste 121, Tucson, AZ 85701, USA, catalogue no. 22737 (holotype), and the RRUFF Project, deposition no. R240002 (cotype)

• How to cite: Yang, H., Gu, X., Fan, G., Kampf, A. R., Thorne, B., Gibbs, R. B., and Downs, R. T.: Shenganfuite, IMA 2024-031, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-032

• Clino-ferro-suenoite

• □Mn${}_{\mathrm{2}}^{\mathrm{2}+}$Fe${}_{\mathrm{5}}^{\mathrm{2}+}$(Si₈O₂₂)(OH)₂

• Cfsue

• Hilläng mines, 1 km E of Ludvika, Dalarna, Sweden (60°08^′49^′′ N, 15°13^′10^′′ E; 170 m a.s.l.)

• Dan Holtstam^*, Fernando Cámara, Henrik Skogby, Alessandro De Leo, and Andreas Karlsson

• ^* E-mail: dan.holtstam@nrm.se

• Amphibole supergroup

• Monoclinic: C2/m; structure determined

• a=9.598(1), b=18.3179(2), c=5.3345(1) Å, β=102.163(1)°

• 8.33(100), 4.173(15), 3.278(21), 3.084(72), 2.784(18), 2.512(26), 1.526(16), 1.412(19)

• Type material is deposited in the collections of the Department of Geosciences, Swedish Museum of Natural History, Box 50007, 10405 Stockholm, Sweden, collection number GEO-NRM 19191754

• How to cite: Holtstam, D., Cámara, F., Skogby, H., De Leo, A., and Karlsson, A.: Clino-ferro-suenoite, IMA 2024-032, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-033

• Nancyrossite

• FeGeO₆H₅

• Ncy

• Tsumeb mine – level 30, Tsumeb, Namibia (19°15^′ S, 17°42^′ E)

• Mark D. Welch^*, Jens Najorka, Annette K. Kleppe, Anthony R. Kampf, and John Spratt

• ^* E-mail: m.welch@nhm.ac.uk

• The germanate analogue of jeanbandyite

• Tetragonal: P4₂/n; structure determined

• a=7.3738(1), c=7.2970(2) Å

• 3.688(100), 3.649(31), 2.594(53), 1.844(29), 1.650(31), 1.646(37), 1.635(38), 1.503(36)

• Type material is deposited in the collections of the Natural History Museum, Cromwell Road, London, SW7 5BD UK, catalogue numbers BM2024,1, BM2024,2, and BM2024,3

• How to cite: Welch, M. D., Najorka, J., Kleppe, A. K., Kampf, A. R., and Spratt, J.: Nancyrossite, IMA 2024-033, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2023-012

• Nacareniobsite-(Nd)

• Ca₂(CaNd)Na₃Nb(Si₂O₇)₂(OF)F₂

• Nns-Nd

• Darai-Pioz alkaline massif, upper reaches of the Darai-Pioz River, Tajikistan (39°30^′ N, 70°40^′ E)

• Atali A. Agakhanov^*, Maxwell C. Day, Elena Sokolova, Vladimir Y. Karpenko, Frank C. Hawthorne, Leonid A. Pautov, Anatoly V. Kasatkin, Igor V. Pekov, Dmitriy I. Belakovskiy, Vitaliya A. Agakhanova, and Sergey N. Britvin

• ^* E-mail: atali99@mail.ru

• Seidozerite supergroup

• Monoclinic: P2₁/c; structure determined

• a=7.419(1), b=5.657(1), c=18.788(4) Å, β=101.38(3)°

• 9.16(17), 3.558(15), 3.059(100), 2.928(37), 2.782(21), 2.688(27), 1.847(23), 1.674(19)

• 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 5998/1

• How to cite: Agakhanov, A. A., Day, M. C., Sokolova, E., Karpenko, V. Y., Hawthorne, F. C., Pautov, L. A., Kasatkin, A. V., Pekov, I. V., Belakovskiy, D. I., Agakhanova, V. A., and Britvin, S. N.: Nacareniobsite-(Nd), IMA 2023-012, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-021

• Proto-owyheeite

• Ag₉Pb₄₀Sb₄₅S₁₁₂

• Powy

• Monte Arsiccio Mine (Sant'Olga tunnel), Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy (43°58^′ N, 10°17^′ E)

• Dan Topa^*, Berthold Stoeger, Frank Keutsch, and Chris Stanley

• ^* E-mail: dan.topa@nhm-wien.ac.at

• A homeotype of owyheeite

• Monoclinic: P2₁/n; structure determined

• a=8.1696(2), b=27.3377(4), c=22.8584(4) Å, β=90.078(2)°

• 3.911(42), 3.476(100), 3.242(72), 3224(49), 2.891(46), 2.887(44), 2.823(38), 2.042(48)

• Type material is deposited in the collections of the Mineralogisch-Petrographische Abteilung, Naturhistorisches Museum, Burgring 7, 1010 Vienna, Austria, catalogue number O 3026

• How to cite: Topa, D., Stoeger, B., Keutsch, F., and Stanley, C.: Proto-owyheeite, IMA 2024-021, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-025

• Auropearceite

• [Ag₉AuS₄][Ag₆As₂S₇]

• Aupea

• Šibeniční vrch epithermal deposit, near Nová Baňa, Žarnovica Co., Banská Bystrica Region, Slovakia (48°24^′49^′′ N, 18°38^′14^′′ E)

• Tomáš Mikuš*, Jozef Vlasáč, Juraj Majzlan, Jakub Plášil, Jiří Sejkora, Václav Petříček, Martin Števko, and Peter Tuček

• ^* E-mail: mikus@savbb.sk

• Pearceite–polybasite group

• Trigonal: P321; structure determined

• a=14.995(3), c=12.115(2) Å

• 12.17(65), 3.141(53), 3.037(100), 2.865(39), 2.536(25), 2.410(17), 2.220(21), 1.876(23)

• Type material is deposited in the collections of the Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 19300 Prague 9, Czech Republic, catalogue number P1P 17/2024

• How to cite: Mikuš, T., Vlasáč, J., Majzlan, J., Plášil, J., Sejkora, J., Petříček, V., Števko, M., and Tuček, P.: Auropearceite, IMA 2024-025, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-027

• Huntingdonite

• Pb₁₉Sb₁₆As₆S₅₁Cl₂

• Hgd

• Madoc, Hastings County, Ontario, Canada (43°42^′17^′′ N, 79°44^′57^′′ W)

• Dan Topa^*, Berthold Stoeger, Frank Keutsch, and Chris Stanley

• ^* E-mail: dan.topa@nhm-wien.ac.at

• New structure type

• Triclinic: $P\stackrel{\mathrm{‾}}{\mathrm{1}}$; structure determined

• a=8.3103(3), b=24.2862(8), c=25.6118(8) Å, α=66.945(2), β=81.566(3), γ=80.135(3)°

• 4.13(49), 3.846(79), 3.517(100), 3.355(48), 3.253(43), 2.816(40), 2.770(42), 2.077(91)

• Type material is deposited in the collections of the Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Canada, catalogue number 12172 (holotype), and the Mineralogisch-Petrographische Abteilung, Naturhistorisches Museum, Burgring 7, 1010 Vienna, Austria, catalogue number O 3112 (cotype)

• How to cite: Topa, D., Stoeger, B., Keutsch, F., and Stanley, C.: Huntingdonite, IMA 2024-027, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-034

• Proxitwelvefoldite

• Pd₃Ni₄Te₈

• Ptw

• Museum sample coming from Kalgoorlie, Western Australia, Australia (30°46^′30^′′ S, 121°30^′18^′′ E)

• Luca Bindi^*, Louis J. Cabri, Marek Mihalkovič, Frantisek Laufek, and Sergey Krivovichev

• ^* E-mail: luca.bindi@unifi.it

• Chemically related to monchetundraite

• Tetragonal: P4₂/mnm; structure determined

• a=10.264(1), c=5.4015(7) Å

• 2.701(20), 2.491(100), 2.420(40), 2.388(30), 2.326(80), 2.262(90), 2.209(45), 1.475(20)

• Type material is deposited in the collections of the Museo di Storia Naturale, Università di Firenze, Via La Pira 4, 50121, Florence, Italy, catalogue number 17047/G

• How to cite: Bindi, L., Cabri, L. J., Mihalkovič, M., Laufek, F., and Krivovichev, S.: Proxitwelvefoldite, IMA 2024-034, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-037

• Zircarsite

• Na₁₈Cu₁₂ZrO₈(AsO₄)₈Cl₆

• Zca

• Arsenatnaya fumarole, second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka Peninsula, Far Eastern Federal District, Russia (55°41^′ N, 160°14^′ E; 1200 m a.s.l.)

• Natalia N. Koshlyakova^*, Igor V. Pekov, Atali A. Agakhanov, Peter C. Burns, Emma Bullock, Vasiliy O. Yapaskurt, Natalia V. Zubkova, Sergey N. Britvin, Robert M. Hazen, and Elena S. Zhitova

• ^* E-mail: nkoshlyakova@gmail.com

• Chemically and structurally related to arsmirandite, lehmannite, and lebedevite

• Cubic: Pm$\stackrel{\mathrm{‾}}{\mathrm{3}}n$; structure determined

• a=21.3341(5) Å

• 9.51(87), 8.69(74), 5.320(100), 3.766(54), 2.664(71), 2.585(60), 2.430(60), 1.885(51)

• 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 6143/1

• How to cite: Koshlyakova, N. N., Pekov, I. V., Agakhanov, A. A., Burns, P. C., Bullock, E., Yapaskurt, V. O., Zubkova, N. V., Britvin, S. N., Hazen, R. M., and Zhitova, E. S.: Zircarsite, IMA 2024-037, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-039

• Alexearlite

• Hg₃(MoO₄)S₂

• Alx

• Lucky Boy mine, Mount Baldy–Ohio Mining District, Piute Co., Utah, USA (38°23^′02^′′ N, 112°16^′27^′′ W – holotype); McDermitt mine, Opalite Mining District, Humboldt Co., Nevada, USA (41°55^′09^′′ N, 117°48^′44^′′ W – cotype)

• Travis A. Olds^*, Anthony R. Kampf, Chi Ma, and Christopher Emproto

• ^* E-mail: oldst@carnegiemnh.org

• New structure type

• Orthorhombic: Pnma; structure determined

• a=8.0624(5), b=6.9185(3), c=13.0035(6) Å

• 4.036(29), 3.461(61), 3.048(100), 2.619(35), 2.435(37), 1.785(42), 1.739(29), 1.538(27)

• Type material is deposited in the collections of the Carnegie Museum of Natural History, 4400 Forbes Avenue, Pittsburgh, PA 15213, USA, catalogue numbers CM34754 (holotype) and CM34755 (cotype)

• How to cite: Olds, T. A., Kampf, A. R., Ma, C., and Emproto, C.: Alexearlite, IMA 2024-039, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-040

• Belmonteite

• CaMn₂(AsO₄)₂ ⋅ 7H₂O

• Bmo

• Gambatesa mine, Graveglia Valley, Ne, Genoa Province, Liguria, Italy (44°21^′34^′′ N, 9°26^′59^′′ E)

• Cristian Biagioni^*, Jiří Sejkora, and Zdeněk Dolníček

• ^* E-mail: cristian.biagioni@unipi.it

• New structure type

• Orthorhombic: Cmce; structure determined

• a=8.8418(9), b=23.031(2), c=13.527(1) Å

• 11.6(s), 8.9(mw), 7.1(mw), 5.37(mw), 3.51(mw), 3.049(mw), 2.905(mw), 2.684(mw)

• Type material is deposited in the collections of the Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, Corso Europa 26, 16132 Genoa, Italy, catalogue number MO720 (holotype), and the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy, catalogue number 20076 (cotype)

• How to cite: Biagioni, C., Sejkora, J., and Dolníček, Z.: Belmonteite, IMA 2024-040, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-041

• Boevskite

• Pb₄(TeO₃)₂(SO₄)(S₂O₃)

• Boe

• Boevskoe deposit, 35 km SW of the town of Kamensk-Uralsky, Kaslinsky District, Chelyabinsk Oblast, Southern Urals, Russia (56°14^′44^′′ N, 61°22^′26^′′ E)

• Anatoly V. Kasatkin^*, Natalia V. Zubkova, Radek Škoda, Vladislav V. Gurzhiy, Fabrizio Nestola, Cristian Biagioni, Atali A. Agakhanov, Sergey N. Britvin, Jakub Plášil, and Aleksey M. Kuznetsov

• ^* E-mail: anatoly.kasatkin@gmail.com

• New structure type

• Orthorhombic: Pnma; structure determined

• a=9.7764(7), b=13.3622(10), c=10.7213(9) Å

• 6.683(65), 3.355(44), 3.344(52), 3.289(60), 3.230(100), 3.144(92), 3.120(51), 2.787(50)

• 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 6127/1

• How to cite: Kasatkin, A. V., Zubkova, N. V., Škoda, R., Gurzhiy, V. V., Nestola, F., Biagioni, C., Agakhanov, A. A., Britvin, S. N., Plášil, J., and Kuznetsov, A. M.: Boevskite, IMA 2024-041, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

IMA no. 2024-042

• Kantorite

• K₂NaMg(SO₄)₂F

• Kao

• Arsenatnaya fumarole, second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka Peninsula, Far Eastern Federal District, Russia (55°41^′ N, 160°14^′ E; 1200 m a.s.l.)

• Igor V. Pekov^*, Sergey N. Britvin, Maria O. Bulakh, Dmitry I. Belakovskiy, Vasiliy O. Yapaskurt, Anna G. Turchkova, and Leonid P. Anikin

• ^* E-mail: igorpekov@mail.ru

• New structure type

• Orthorhombic: Pna2₁; structure determined

• a=6.9894(7), b=7.1378(7), c=17.925(2) Å

• 8.99(91), 4.83(57), 3.588(47), 3.511(74), 2.926(100), 2.805(44), 2.768(53), 2.510(55)

• 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 6141/1

• How to cite: Pekov, I. V., Britvin, S. N., Bulakh, M. O., Belakovskiy, D. I., Yapaskurt, V. O., Turchkova, A. G., and Anikin, L. P.: Kantorite, IMA 2024-042, in: CNMNC Newsletter 81, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-917-2024, 2024.

3.1 IMA 24-C: definition of the neotype material for chukhrovite-(Ce)

(Daniela Mauro, Cristian Biagioni, Jiří Sejkora, and Zdeněk Dolníček)

Proposal 24-C is accepted, and a neotype sample is defined for chukhrovite-(Ce). The type locality is the Pb–Zn ore deposit formerly exploited by the Tripi mine, Alì Terme, Peloritani Mountains, Messina Province, Sicily, Italy. Neotype material is deposited in the mineralogical collection of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy, under catalogue number 20075.