Articles | Volume 35, issue 1
https://doi.org/10.5194/ejm-35-81-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/ejm-35-81-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Feb 2023
Research article |
| 10 Feb 2023
| 10 Feb 2023
Dutrowite, Na(Fe2+2.5Ti0.5)Al6(Si6O18)(BO3)3(OH)3O, a new mineral from the Apuan Alps (Tuscany, Italy): the first member of the tourmaline supergroup with Ti as a species-forming chemical constituent
Cristian Biagioni
CORRESPONDING AUTHOR
Dipartimento di Scienze della Terra, Università di Pisa, Via Santa
Maria 53, 56126 Pisa, Italy
Ferdinando Bosi
Dipartimento di Scienze della Terra, Sapienza Università di Roma,
Piazzale Aldo Moro 5, 00185 Rome, Italy
Daniela Mauro
Dipartimento di Scienze della Terra, Università di Pisa, Via Santa
Maria 53, 56126 Pisa, Italy
Museo di Storia Naturale, Università di Pisa, Via Roma 79, 56011
Calci, Italy
Henrik Skogby
Department of Geosciences, Swedish Museum of Natural History, P.O. Box
50007, 10405 Stockholm, Sweden
Andrea Dini
Istituto di Geoscienze e Georisorse, CNR-Pisa, Via Moruzzi 1, 56124
Pisa, Italy
Federica Zaccarini
Department of Applied Geological Sciences and Geophysics, University
of Leoben, Peter Tunner Str. 5, 8700 Leoben, Austria
Related authors
Cristian Biagioni, Anatoly V. Kasatkin, Fabrizio Nestola, Radek Škoda, Vladislav V. Gurzhiy, Atali A. Agakhanov, and Natalia N. Koshlyakova
Eur. J. Mineral., 36, 529–540, https://doi.org/10.5194/ejm-36-529-2024, https://doi.org/10.5194/ejm-36-529-2024, 2024
Short summary
Short summary
Zvěstovite-(Fe) is a new, Ag-rich, member of the tetrahedrite group, the most widespread sulfosalts in ore deposits. Its discovery stresses the chemical variability of this mineral group, allowing for a better understanding of the structural plasticity of these compounds, which are able to host a plethora of different elements typical of hydrothermal environments.
Jonas Toupal, Daniela Mauro, Cristian Biagioni, Federica Zaccarini, and Reto Gieré
Eur. J. Mineral., 36, 1–10, https://doi.org/10.5194/ejm-36-1-2024, https://doi.org/10.5194/ejm-36-1-2024, 2024
Short summary
Short summary
In this work, we refine the crystal structure of childrenite. Additionally, we provide compositional data to substantially extend the published solid-solution series between childrenite and eosphorite, the Fe and Mn endmembers, respectively. We analyze the valence state of iron to avoid erroneous classification of ernstite or potential discovery of "oxychildrenite", a mineral species not yet confirmed to be stable in nature.
Jiří Sejkora, Cristian Biagioni, Pavel Škácha, Silvia Musetti, Anatoly V. Kasatkin, and Fabrizio Nestola
Eur. J. Mineral., 35, 897–907, https://doi.org/10.5194/ejm-35-897-2023, https://doi.org/10.5194/ejm-35-897-2023, 2023
Short summary
Short summary
We present the description of new mineral – a Cd-dominant member of the tetrahedrite group, tetrahedrite-(Cd), from the Radětice deposit near Příbram, Czech Republic. All necessary data including crystal structure were successfully determined, and the mineral and its name have been approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (number 2022-115).
Daniela Mauro, Cristian Biagioni, Jiří Sejkora, Zdeněk Dolníček, and Radek Škoda
Eur. J. Mineral., 35, 703–714, https://doi.org/10.5194/ejm-35-703-2023, https://doi.org/10.5194/ejm-35-703-2023, 2023
Short summary
Short summary
Batoniite is a new mineral species belonging to the Al2O3–SO3–H2O ternary system, first found in the Cetine di Cotorniano Mine (Tuscany, Italy). This hydrated Al sulfate shows a novel crystal structure, characterized by Al octamers, so far reported in only synthetic compounds.
Cristian Biagioni, Marco E. Ciriotti, Georges Favreau, Daniela Mauro, and Federica Zaccarini
Eur. J. Mineral., 34, 365–374, https://doi.org/10.5194/ejm-34-365-2022, https://doi.org/10.5194/ejm-34-365-2022, 2022
Short summary
Short summary
The paper reports the type description of the new mineral species graulichite-(La). This is a new addition to the dussertite group within the alunite supergroup, and its discovery improves our knowledge on the crystal chemistry of this important supergroup of minerals, having both technological and environmental applications.
Daniela Mauro, Cristian Biagioni, and Federica Zaccarini
Eur. J. Mineral., 33, 717–726, https://doi.org/10.5194/ejm-33-717-2021, https://doi.org/10.5194/ejm-33-717-2021, 2021
Short summary
Short summary
This work reports the full crystal-chemical characterization of gersdorffite from Contrada Zillì (Peloritani Mountains, Sicily, Italy). The structural type shown by gersdorffite (ordered polytype 213) and its chemistry agree with low-temperature crystallization conditions. Moreover, the chemical zoning of the studied crystals recorded changes in the crystallization physicochemical conditions. This zoning may be due to a multistage crystallization, related to the evolution of the ore deposits.
Yves Moëlo and Cristian Biagioni
Eur. J. Mineral., 32, 623–635, https://doi.org/10.5194/ejm-32-623-2020, https://doi.org/10.5194/ejm-32-623-2020, 2020
Short summary
Short summary
The plagionite group is a family of complex sulfides (
lead-antimony sulfosalts) encountered in various Pb-Cu-Zn ore deposits. Analysis of these crystal structures confirms a systematic Pb-versus-Sb substitution in two adjacent cation positions. Such a substitution varies according not only to the Pb / Sb ratio of each member but also, apparently, to the kinetics of crystallization. Re-examination of a Pb-free synthetic derivative permitted its redefinition as a Na-Sb sulfosalt.
Cristian Biagioni, Anatoly V. Kasatkin, Fabrizio Nestola, Radek Škoda, Vladislav V. Gurzhiy, Atali A. Agakhanov, and Natalia N. Koshlyakova
Eur. J. Mineral., 36, 529–540, https://doi.org/10.5194/ejm-36-529-2024, https://doi.org/10.5194/ejm-36-529-2024, 2024
Short summary
Short summary
Zvěstovite-(Fe) is a new, Ag-rich, member of the tetrahedrite group, the most widespread sulfosalts in ore deposits. Its discovery stresses the chemical variability of this mineral group, allowing for a better understanding of the structural plasticity of these compounds, which are able to host a plethora of different elements typical of hydrothermal environments.
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 36, 525–528, https://doi.org/10.5194/ejm-36-525-2024, https://doi.org/10.5194/ejm-36-525-2024, 2024
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 36, 361–367, https://doi.org/10.5194/ejm-36-361-2024, https://doi.org/10.5194/ejm-36-361-2024, 2024
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 36, 165–172, https://doi.org/10.5194/ejm-36-165-2024, https://doi.org/10.5194/ejm-36-165-2024, 2024
Jonas Toupal, Daniela Mauro, Cristian Biagioni, Federica Zaccarini, and Reto Gieré
Eur. J. Mineral., 36, 1–10, https://doi.org/10.5194/ejm-36-1-2024, https://doi.org/10.5194/ejm-36-1-2024, 2024
Short summary
Short summary
In this work, we refine the crystal structure of childrenite. Additionally, we provide compositional data to substantially extend the published solid-solution series between childrenite and eosphorite, the Fe and Mn endmembers, respectively. We analyze the valence state of iron to avoid erroneous classification of ernstite or potential discovery of "oxychildrenite", a mineral species not yet confirmed to be stable in nature.
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 35, 1073–1078, https://doi.org/10.5194/ejm-35-1073-2023, https://doi.org/10.5194/ejm-35-1073-2023, 2023
Daniel Atencio, Andrezza A. Azzi, Kai Qu, Ritsuro Miyawaki, Ferdinando Bosi, and Koichi Momma
Eur. J. Mineral., 35, 1027–1030, https://doi.org/10.5194/ejm-35-1027-2023, https://doi.org/10.5194/ejm-35-1027-2023, 2023
Short summary
Short summary
This article introduces a new nomenclature system for the cerite group minerals. This system was necessary to allow the nomenclature of new species of minerals that are currently being described.
Jiří Sejkora, Cristian Biagioni, Pavel Škácha, Silvia Musetti, Anatoly V. Kasatkin, and Fabrizio Nestola
Eur. J. Mineral., 35, 897–907, https://doi.org/10.5194/ejm-35-897-2023, https://doi.org/10.5194/ejm-35-897-2023, 2023
Short summary
Short summary
We present the description of new mineral – a Cd-dominant member of the tetrahedrite group, tetrahedrite-(Cd), from the Radětice deposit near Příbram, Czech Republic. All necessary data including crystal structure were successfully determined, and the mineral and its name have been approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (number 2022-115).
Ian E. Grey, Stephanie Boer, Colin M. MacRae, Nicholas C. Wilson, William G. Mumme, and Ferdinando Bosi
Eur. J. Mineral., 35, 909–919, https://doi.org/10.5194/ejm-35-909-2023, https://doi.org/10.5194/ejm-35-909-2023, 2023
Short summary
Short summary
The paper describes the formal establishment of the paulkerrite group of minerals and its nomenclature. It includes the application of a site-merging procedure, coupled with a site-total-charge analysis, to obtain unambiguous end-member formulae. Application of the procedure has resulted in the revision of the end-member formulae for several of the group members.
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 35, 891–895, https://doi.org/10.5194/ejm-35-891-2023, https://doi.org/10.5194/ejm-35-891-2023, 2023
Alessandra Altieri, Federico Pezzotta, Giovanni B. Andreozzi, Henrik Skogby, and Ferdinando Bosi
Eur. J. Mineral., 35, 755–771, https://doi.org/10.5194/ejm-35-755-2023, https://doi.org/10.5194/ejm-35-755-2023, 2023
Short summary
Short summary
Elba tourmaline crystals commonly display a sharp transition to dark colors at the analogous termination, but the mechanisms leading to the formation of such terminations are unclear. Here we propose a general genetic model in which, as a consequence of a pocket rupture event, chemical alteration of early formed Fe-/Mn-rich minerals in the enclosing pegmatite was responsible for the release of Fe and/or Mn in the geochemical system, allowing the formation of the late-stage dark terminations.
Daniela Mauro, Cristian Biagioni, Jiří Sejkora, Zdeněk Dolníček, and Radek Škoda
Eur. J. Mineral., 35, 703–714, https://doi.org/10.5194/ejm-35-703-2023, https://doi.org/10.5194/ejm-35-703-2023, 2023
Short summary
Short summary
Batoniite is a new mineral species belonging to the Al2O3–SO3–H2O ternary system, first found in the Cetine di Cotorniano Mine (Tuscany, Italy). This hydrated Al sulfate shows a novel crystal structure, characterized by Al octamers, so far reported in only synthetic compounds.
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 35, 659–664, https://doi.org/10.5194/ejm-35-659-2023, https://doi.org/10.5194/ejm-35-659-2023, 2023
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 35, 397–402, https://doi.org/10.5194/ejm-35-397-2023, https://doi.org/10.5194/ejm-35-397-2023, 2023
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 35, 285–293, https://doi.org/10.5194/ejm-35-285-2023, https://doi.org/10.5194/ejm-35-285-2023, 2023
Ferdinando Bosi, Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 35, 75–79, https://doi.org/10.5194/ejm-35-75-2023, https://doi.org/10.5194/ejm-35-75-2023, 2023
Dan Holtstam, Fernando Cámara, Andreas Karlsson, Henrik Skogby, and Thomas Zack
Eur. J. Mineral., 34, 451–462, https://doi.org/10.5194/ejm-34-451-2022, https://doi.org/10.5194/ejm-34-451-2022, 2022
Short summary
Short summary
A new mineral has been discovered, an amphibole, with the name ferri-taramite, which has now been approved by the International Mineralogical Association. The paper discusses the significance of the discovery in relation to other amphiboles found worldwide. This taramite is unique in that it is from a skarn associated with ore and is not of magmatic origin. For the description we have used many methods, including X-ray diffraction, chemical analyses and several types of spectroscopy.
Cristian Biagioni, Marco E. Ciriotti, Georges Favreau, Daniela Mauro, and Federica Zaccarini
Eur. J. Mineral., 34, 365–374, https://doi.org/10.5194/ejm-34-365-2022, https://doi.org/10.5194/ejm-34-365-2022, 2022
Short summary
Short summary
The paper reports the type description of the new mineral species graulichite-(La). This is a new addition to the dussertite group within the alunite supergroup, and its discovery improves our knowledge on the crystal chemistry of this important supergroup of minerals, having both technological and environmental applications.
Daniela Mauro, Cristian Biagioni, and Federica Zaccarini
Eur. J. Mineral., 33, 717–726, https://doi.org/10.5194/ejm-33-717-2021, https://doi.org/10.5194/ejm-33-717-2021, 2021
Short summary
Short summary
This work reports the full crystal-chemical characterization of gersdorffite from Contrada Zillì (Peloritani Mountains, Sicily, Italy). The structural type shown by gersdorffite (ordered polytype 213) and its chemistry agree with low-temperature crystallization conditions. Moreover, the chemical zoning of the studied crystals recorded changes in the crystallization physicochemical conditions. This zoning may be due to a multistage crystallization, related to the evolution of the ore deposits.
Yves Moëlo and Cristian Biagioni
Eur. J. Mineral., 32, 623–635, https://doi.org/10.5194/ejm-32-623-2020, https://doi.org/10.5194/ejm-32-623-2020, 2020
Short summary
Short summary
The plagionite group is a family of complex sulfides (
lead-antimony sulfosalts) encountered in various Pb-Cu-Zn ore deposits. Analysis of these crystal structures confirms a systematic Pb-versus-Sb substitution in two adjacent cation positions. Such a substitution varies according not only to the Pb / Sb ratio of each member but also, apparently, to the kinetics of crystallization. Re-examination of a Pb-free synthetic derivative permitted its redefinition as a Na-Sb sulfosalt.
Related subject area
New minerals and systematic mineralogy
Zvěstovite-(Fe), Ag6(Ag4Fe2)As4S13, a new member of the tetrahedrite group from the Ulatayskoe Ag–Cu–Co occurrence, eastern Siberia, Russia
Fluor-rewitzerite, [(H2O)K]Mn2(Al2Ti)(PO4)4(OF)(H2O)10 ⋅ 4H2O, a new paulkerrite-group mineral, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany
Kenoargentotetrahedrite-(Zn), [Ag6]4+(Cu4Zn2)Sb4S12□, a new member of the tetrahedrite group from the Yindongpo Au deposit, China
Igelströmite, Fe3+(Sb3+Pb2+)O4, and manganoschafarzikite, Mn2+Sb3+2O4, two new members of the newly established minium group, from the Långban Mn–Fe deposit, Värmland, Sweden
Mckelveyite group minerals – Part 4: Alicewilsonite-(YLa), Na2Sr2YLa(CO3)6 ⋅ 3H2O, a new lanthanum-dominant species from the Paratoo mine, Australia
Macraeite, [(H2O)K]Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 ⋅ 4H2O, a new monoclinic paulkerrite-group mineral, from the Cubos–Mesquitela–Mangualde pegmatite, Portugal
Mckelveyite group minerals – Part 3: Bainbridgeite-(YCe), Na2Ba2YCe(CO3)6 ⋅ 3H2O, a new species from Mont Saint-Hilaire, Canada
Heimite, PbCu2(AsO4)(OH)3 ⋅ 2H2O, a new mineral from the Grosses Chalttal deposit, Switzerland
OxyEMG: an application for determination of the oxyspinel group end-members based on electron microprobe analyses
Changes to the cerite group nomenclature
Tetrahedrite-(Cd), Cu6(Cu4Cd2)Sb4S13, from Radětice near Příbram, Czech Republic: the new Cd member of the tetrahedrite group
Crystal chemistry of type paulkerrite and establishment of the paulkerrite group nomenclature
Regerite, KFe6(PO4)4(OH)7(H2O)6 ⋅ 4H2O, the first new mineral species from the Kreuzberg pegmatite, Pleystein, Oberpfalz, Bavaria, Germany
Batoniite, [Al8(OH)14(H2O)18](SO4)5 ⋅ 5H2O, a new mineral with the [Al8(OH)14(H2O)18]10+ polyoxocation from the Cetine di Cotorniano Mine, Tuscany, Italy
Hochleitnerite, [K(H2O)]Mn2(Ti2Fe)(PO4)4O2(H2O)10 ⋅ 4H2O, a new paulkerrite-group mineral, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany
Nomenclature of the triphylite group of minerals
Pseudo-cubic trigonal pyrite from the Madan Pb–Zn ore field (Rhodope Massif, Bulgaria): morphology and twinning
Manganrockbridgeite, Mn2+2Fe3+3(PO4)3(OH)4(H2O), a new member of the rockbridgeite group, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria
Pleysteinite, [(H2O)0.5K0.5]2Mn2Al3(PO4)4F2(H2O)10 ⋅ 4H2O, the Al analogue of benyacarite, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany
Mckelveyite group minerals – Part 1: Nomenclature and new data on donnayite-(Y)
Mckelveyite group minerals – Part 2: Alicewilsonite-(YCe), Na2Sr2YCe(CO3)6 ⋅ 3H2O, a new species
Whiteite-(CaMnFe), a new jahnsite-group mineral from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria
Corresponding relationship between characteristic birefringence, strain, and impurities in Zimbabwean mixed-habit diamonds revealed by mapping techniques
TotBlocks: exploring the relationships between modular rock-forming minerals with 3D-printed interlocking brick modules
Ferri-taramite, a new member of the amphibole supergroup, from the Jakobsberg Mn–Fe deposit, Värmland, Sweden
Ferro-ferri-holmquistite, □Li2(Fe2+3Fe3+2)Si8O22(OH)2, Fe2+Fe3+ analogue of holmquistite, from the Iwagi islet, Ehime, Japan
Tomsquarryite, NaMgAl3(PO4)2(OH)6 ● 8H2O, a new crandallite-derivative mineral from Tom's phosphate quarry, Kapunda, South Australia
Graulichite-(La), LaFe3+3(AsO4)2(OH)6, a new addition to the alunite supergroup from the Patte d'Oie mine, Bou Skour mining district, Morocco
Arrojadite-group nomenclature: sigismundite reinstated
Redefinition of beraunite, Fe3+6(PO4)4O(OH)4 ⋅ 6H2O, and discreditation of the name eleonorite: a re-investigation of type material from the Hrbek Mine (Czech Republic)
Redefinition of angastonite, CaMgAl2(PO4)2(OH)4 ⋅ 7H2O, as an amorphous mineral
Liguowuite, WO3, a new member of the A-site vacant perovskite type minerals from the Panzhihua–Xichang region, China
Zinkgruvanite, Ba4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2, a new ericssonite-group mineral from the Zinkgruvan Zn-Pb-Ag-Cu deposit, Askersund, Örebro County, Sweden
Kahlenbergite KAl11O17, a new β-alumina mineral and Fe-rich hibonite from the Hatrurim Basin, the Negev desert, Israel
Occurrence of silesiaite, a new calcium–iron–tin sorosilicate in the calcic skarn of El Valle-Boinás, Asturias, Spain
Grimmite, NiCo2S4, a new thiospinel from Příbram, Czech Republic
Freitalite, C14H10, a new aromatic hydrocarbon mineral from Freital, Saxony, Germany
Gobelinite, the Co analogue of ktenasite from Cap Garonne, France, and Eisenzecher Zug, Germany
Two new minerals, badengzhuite, TiP, and zhiqinite, TiSi2, from the Cr-11 chromitite orebody, Luobusa ophiolite, Tibet, China: is this evidence for super-reduced mantle-derived fluids?
Wumuite (KAl0.33W2.67O9) – a new mineral with an HTB-type structure from the Panzhihua–Xichang region in China
Luxembourgite, AgCuPbBi4Se8, a new mineral species from Bivels, Grand Duchy of Luxembourg
Niasite and johanngeorgenstadtite, Ni2+4.5(AsO4)3 dimorphs from Johanngeorgenstadt, Germany
Laurentthomasite, Mg2K(Be2Al)Si12O30: a new milarite-group-type member from the Ihorombe region, Fianarantsoa Province, Madagascar
Tancaite-(Ce), ideally FeCe(MoO4)3 ● 3H2O: description and average crystal structure
Heliophyllite: a discredited mineral species identical to ecdemite
New IMA CNMNC guidelines on combustion products from burning coal dumps
Crystal chemistry of fluorcarletonite, a new mineral from the Murun alkaline complex (Russia)
Halilsarpite, a new arsenate analogue of walentaite, from the Oumlil mine, Bou Azzer district, Morocco
Cristian Biagioni, Anatoly V. Kasatkin, Fabrizio Nestola, Radek Škoda, Vladislav V. Gurzhiy, Atali A. Agakhanov, and Natalia N. Koshlyakova
Eur. J. Mineral., 36, 529–540, https://doi.org/10.5194/ejm-36-529-2024, https://doi.org/10.5194/ejm-36-529-2024, 2024
Short summary
Short summary
Zvěstovite-(Fe) is a new, Ag-rich, member of the tetrahedrite group, the most widespread sulfosalts in ore deposits. Its discovery stresses the chemical variability of this mineral group, allowing for a better understanding of the structural plasticity of these compounds, which are able to host a plethora of different elements typical of hydrothermal environments.
Rupert Hochleitner, Ian E. Grey, Anthony R. Kampf, Stephanie Boer, Colin M. MacRae, William G. Mumme, and Nicholas C. Wilson
Eur. J. Mineral., 36, 541–554, https://doi.org/10.5194/ejm-36-541-2024, https://doi.org/10.5194/ejm-36-541-2024, 2024
Short summary
Short summary
The paper describes the characterisation of fluor-rewitzerite, a new mineral species belonging to the paulkerrite group. The crystal structure of fluor-rewitzerite has been refined using microfocus synchrotron diffraction data, which allowed 25 of the possible 30 H atoms to be located, thus establishing key features of the H bonding. Crystallochemical trends are reviewed for seven recently characterised monoclinic paulkerrite-group minerals.
Kai Qu, Xianzhang Sima, Xiangping Gu, Weizhi Sun, Guang Fan, Zeqiang Yang, and Yanjuan Wang
Eur. J. Mineral., 36, 397–409, https://doi.org/10.5194/ejm-36-397-2024, https://doi.org/10.5194/ejm-36-397-2024, 2024
Short summary
Short summary
In this paper, the full description of the extremely rare [Ag6]4+-cluster-containing new tetrahedrite-group mineral kenoargentotetrahedrite-(Zn) is reported. The structure refinement result confirms the coupling between the site occupancy factor of subvalent hexasilver clusters at the M(2) site and that of the vacancy at the S(2) site. This relationship further substantiates the charge balance substitution mechanism of S-deficiency tetrahedrites: 6M(2)Ag+ + S(2)S2– = M(2)[Ag6]4+ + S(2)□.
Dan Holtstam, Jörgen Langhof, Henrik Friis, Andreas Karlsson, and Muriel Erambert
Eur. J. Mineral., 36, 311–322, https://doi.org/10.5194/ejm-36-311-2024, https://doi.org/10.5194/ejm-36-311-2024, 2024
Short summary
Short summary
We described two new minerals, igelströmite and manganoschafarzikite, from the Långban manganese–iron deposit in Värmland, Sweden. The chemical formulae are Fe3+(Sb3+Pb2+)O4 and Mn2+Sb3+2O4, respectively. They belong to a new mineral group, where all members have the same crystal structure. It is called the minium group, after the lead-oxide mineral that is the oldest known substance of this kind.
Inna Lykova, Ralph Rowe, Glenn Poirier, Henrik Friis, and Kate Helwig
Eur. J. Mineral., 36, 301–310, https://doi.org/10.5194/ejm-36-301-2024, https://doi.org/10.5194/ejm-36-301-2024, 2024
Short summary
Short summary
The first lanthanum-dominant mckelveyite group mineral, alicewilsonite-(YLa), Na2Sr2YLa(CO3)6∙3H2O, was found at the Paratoo copper mine, South Australia, Australia.
Ian E. Grey, Christian Rewitzer, Rupert Hochleitner, Anthony R. Kampf, Stephanie Boer, William G. Mumme, and Nicholas C. Wilson
Eur. J. Mineral., 36, 267–278, https://doi.org/10.5194/ejm-36-267-2024, https://doi.org/10.5194/ejm-36-267-2024, 2024
Short summary
Short summary
Macraeite is the fourth type mineral to be described from the Mangualde pegmatite, Portugal, and is the first paulkerrite-group mineral to be characterised from the locality. Its crystal structure has been refined using synchrotron diffraction data, and its chemical analysis, Raman spectrum, and optical properties are reported.
Inna Lykova, Ralph Rowe, Glenn Poirier, Henrik Friis, and Kate Helwig
Eur. J. Mineral., 36, 183–194, https://doi.org/10.5194/ejm-36-183-2024, https://doi.org/10.5194/ejm-36-183-2024, 2024
Short summary
Short summary
The new mckelveyite group mineral bainbridgeite-(YCe) was found at Mont Saint-Hilaire, Quebec, Canada.
Thomas Malcherek, Boriana Mihailova, Jochen Schlüter, Philippe Roth, and Nicolas Meisser
Eur. J. Mineral., 36, 153–164, https://doi.org/10.5194/ejm-36-153-2024, https://doi.org/10.5194/ejm-36-153-2024, 2024
Short summary
Short summary
The new mineral heimite was originally discovered on the mine dumps of the Grosses Chalttal deposit, Mürtschenalp district, Glarus, Switzerland. Its relatively simple chemistry is formed by water and ions of lead, copper, arsenic, hydrogen and oxygen. The mineral's crystal structure is related to the well-known duftite, which is also observed to grow on crystals of heimite. While heimite has so far only been found in the central Alps, it is expected to occur in other copper deposits worldwide.
Gabriela R. Ferracutti, Lucía M. Asiain, Antonella S. Antonini, Juan E. Tanzola, and M. Luján Ganuza
Eur. J. Mineral., 36, 87–98, https://doi.org/10.5194/ejm-36-87-2024, https://doi.org/10.5194/ejm-36-87-2024, 2024
Short summary
Short summary
The paper proposes an application called OxyEMG (Oxyspinel group End-Member Generator), which is an improved version of EMG. This tool allows for calculating the portions of 31 end-members of the oxyspinel group from data obtained with an electron microprobe. This is fundamental since this group of minerals is considered to be tectonic tracers; their integral composition should be taken into account and not only those end-members that make up the magnetite or ulvöspinel prisms.
Daniel Atencio, Andrezza A. Azzi, Kai Qu, Ritsuro Miyawaki, Ferdinando Bosi, and Koichi Momma
Eur. J. Mineral., 35, 1027–1030, https://doi.org/10.5194/ejm-35-1027-2023, https://doi.org/10.5194/ejm-35-1027-2023, 2023
Short summary
Short summary
This article introduces a new nomenclature system for the cerite group minerals. This system was necessary to allow the nomenclature of new species of minerals that are currently being described.
Jiří Sejkora, Cristian Biagioni, Pavel Škácha, Silvia Musetti, Anatoly V. Kasatkin, and Fabrizio Nestola
Eur. J. Mineral., 35, 897–907, https://doi.org/10.5194/ejm-35-897-2023, https://doi.org/10.5194/ejm-35-897-2023, 2023
Short summary
Short summary
We present the description of new mineral – a Cd-dominant member of the tetrahedrite group, tetrahedrite-(Cd), from the Radětice deposit near Příbram, Czech Republic. All necessary data including crystal structure were successfully determined, and the mineral and its name have been approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (number 2022-115).
Ian E. Grey, Stephanie Boer, Colin M. MacRae, Nicholas C. Wilson, William G. Mumme, and Ferdinando Bosi
Eur. J. Mineral., 35, 909–919, https://doi.org/10.5194/ejm-35-909-2023, https://doi.org/10.5194/ejm-35-909-2023, 2023
Short summary
Short summary
The paper describes the formal establishment of the paulkerrite group of minerals and its nomenclature. It includes the application of a site-merging procedure, coupled with a site-total-charge analysis, to obtain unambiguous end-member formulae. Application of the procedure has resulted in the revision of the end-member formulae for several of the group members.
Christian Rewitzer, Rupert Hochleitner, Ian E. Grey, Anthony R. Kampf, Stephanie Boer, and Colin M. MacRae
Eur. J. Mineral., 35, 805–812, https://doi.org/10.5194/ejm-35-805-2023, https://doi.org/10.5194/ejm-35-805-2023, 2023
Short summary
Short summary
Regerite is the first new mineral species to be described from the Kreuzberg pegmatite, Pleystein, in the Oberpfalz, Bavaria. It has been characterised using electron microprobe analysis, Raman spectroscopy, optical measurements and a synchrotron-based single-crystal structure refinement. The structure type for regerite has not been previously reported.
Daniela Mauro, Cristian Biagioni, Jiří Sejkora, Zdeněk Dolníček, and Radek Škoda
Eur. J. Mineral., 35, 703–714, https://doi.org/10.5194/ejm-35-703-2023, https://doi.org/10.5194/ejm-35-703-2023, 2023
Short summary
Short summary
Batoniite is a new mineral species belonging to the Al2O3–SO3–H2O ternary system, first found in the Cetine di Cotorniano Mine (Tuscany, Italy). This hydrated Al sulfate shows a novel crystal structure, characterized by Al octamers, so far reported in only synthetic compounds.
Ian E. Grey, Erich Keck, Anthony R. Kampf, Colin M. MacRae, Robert W. Gable, William G. Mumme, Nicholas C. Wilson, Alexander M. Glenn, and Cameron Davidson
Eur. J. Mineral., 35, 635–643, https://doi.org/10.5194/ejm-35-635-2023, https://doi.org/10.5194/ejm-35-635-2023, 2023
Short summary
Short summary
Hochleitnerite is a new member of the paulkerrite group of minerals. Its crystal structure, chemical analyses and Raman spectroscopy are reported, and its crystallochemical properties are discussed in relation to other group members.
Lyudmila M. Lyalina, Ekaterina A. Selivanova, and Frédéric Hatert
Eur. J. Mineral., 35, 427–437, https://doi.org/10.5194/ejm-35-427-2023, https://doi.org/10.5194/ejm-35-427-2023, 2023
Short summary
Short summary
There are unresolved problems related to the nomenclature and identification of mineral species belonging to the triphylite group of minerals. They can be solved by discarding the traditional views on succession of mineral species during oxidation. In other words, it is necessary to separate the concepts of the origin of the mineral and the boundaries of the species.
Yves Moëlo
Eur. J. Mineral., 35, 333–346, https://doi.org/10.5194/ejm-35-333-2023, https://doi.org/10.5194/ejm-35-333-2023, 2023
Short summary
Short summary
Pyrite crystals with rhombohedral morphology have been known for a long time and were considered up to now as curiosities. The morphological study of well-crystallized, centimeter-sized crystals, often twinned, from the Madan Pb–Zn ore field permitted us to define such a pyrite variety as a pseudo-cubic trigonal derivative of pyrite.
Ian E. Grey, Rupert Hochleitner, Anthony R. Kampf, Stephanie Boer, Colin M. MacRae, John D. Cashion, Christian Rewitzer, and William G. Mumme
Eur. J. Mineral., 35, 295–304, https://doi.org/10.5194/ejm-35-295-2023, https://doi.org/10.5194/ejm-35-295-2023, 2023
Short summary
Short summary
Manganrockbridgeite, Mn2+2Fe3+3(PO4)3(OH)4(H2O), a new member of the rockbridgeite group, has been characterised using electron microprobe analyses, Mössbauer spectroscopy, optical properties and single-crystal X-ray diffraction. Whereas other rockbridgeite-group minerals have orthorhombic symmetry with a statistical distribution of 50%Fe3+/50% vacancies in M3-site octahedra, monoclinic manganrockbridgeite has full ordering of Fe3+ and vacancies in alternate M3 sites along the 5.2 Å axis.
Ian E. Grey, Rupert Hochleitner, Christian Rewitzer, Anthony R. Kampf, Colin M. MacRae, Robert W. Gable, William G. Mumme, Erich Keck, and Cameron Davidson
Eur. J. Mineral., 35, 189–197, https://doi.org/10.5194/ejm-35-189-2023, https://doi.org/10.5194/ejm-35-189-2023, 2023
Short summary
Short summary
Pleysteinite has been approved as a new mineral species, and we describe here the characterisation of the mineral and its relationship to related minerals benyacarite, paulkerrite and mantienneite. The characterisation includes the determination and refinement of the crystal structure, electron microprobe analyses, optical properties and interpretation of its Raman spectrum.
Inna Lykova, Ralph Rowe, Glenn Poirier, Gerald Giester, Kelsie Ojaste, and Henrik Friis
Eur. J. Mineral., 35, 133–142, https://doi.org/10.5194/ejm-35-133-2023, https://doi.org/10.5194/ejm-35-133-2023, 2023
Short summary
Short summary
A new mineral group – the mckelveyite group – consisting of seven carbonate minerals was established. One of the seven members, donnayite-(Y), was re-investigated and its belonging to the mckelveyite group was confirmed.
Inna Lykova, Ralph Rowe, Glenn Poirier, Henrik Friis, and Kate Helwig
Eur. J. Mineral., 35, 143–155, https://doi.org/10.5194/ejm-35-143-2023, https://doi.org/10.5194/ejm-35-143-2023, 2023
Short summary
Short summary
Alicewilsonite-(YCe), a new mckelveyite group, was found at Mont Saint-Hilaire, Quebec, Canada, and subsequently at the Saint-Amable sill, Quebec, Canada, and the Khibiny Massif, Kola Peninsula, Russia.
Rupert Hochleitner, Christian Rewitzer, Ian E. Grey, William G. Mumme, Colin M. MacRae, Anthony R. Kampf, Erich Keck, Robert W. Gable, and Alexander M. Glenn
Eur. J. Mineral., 35, 95–103, https://doi.org/10.5194/ejm-35-95-2023, https://doi.org/10.5194/ejm-35-95-2023, 2023
Short summary
Short summary
The paper gives a characterisation of the new mineral species, whiteite-(CaMnFe), which has recently been approved as a new mineral (proposal IMA2022-077). The study included a single-crystal structure refinement that, when combined with electron microprobe analyses, confirmed that the mineral was a new member of the whiteite subgroup of the jahnsite group of minerals. Relationships between the crystal structure and the unit-cell parameters for the whiteite-subgroup minerals are discussed.
Chengyang Sun, Taijin Lu, Mingyue He, Zhonghua Song, and Yi Deng
Eur. J. Mineral., 34, 539–547, https://doi.org/10.5194/ejm-34-539-2022, https://doi.org/10.5194/ejm-34-539-2022, 2022
Short summary
Short summary
It was determined that growth bands showing the straight birefringence in octahedral sectors and the enrichment of graphite inclusions in cuboid sectors of Zimbabwean mixed-habit diamonds may both be due to the fluctuation of temperature during crystallization, and they displayed positive anomalies of plastic deformation, residual stress, nitrogen concentration, and VN3H defects. This conclusion clearly revealed the correlation between birefringence and spectroscopic properties of diamonds.
Derek D. V. Leung and Paige E. dePolo
Eur. J. Mineral., 34, 523–538, https://doi.org/10.5194/ejm-34-523-2022, https://doi.org/10.5194/ejm-34-523-2022, 2022
Short summary
Short summary
Minerals have complex crystal structures, but many common minerals are built from the same chemical building blocks. TotBlocks is a novel, open-source tool for investigating these structures. It consists of 3D-printed modules representing the silica tetrahedra and metal–oxygen octahedra that form the shared chemical building blocks of rock-forming minerals. TotBlocks is a low-cost visualization tool that relates mineral properties (habit, cleavage, and symmetry) to crystal structures.
Dan Holtstam, Fernando Cámara, Andreas Karlsson, Henrik Skogby, and Thomas Zack
Eur. J. Mineral., 34, 451–462, https://doi.org/10.5194/ejm-34-451-2022, https://doi.org/10.5194/ejm-34-451-2022, 2022
Short summary
Short summary
A new mineral has been discovered, an amphibole, with the name ferri-taramite, which has now been approved by the International Mineralogical Association. The paper discusses the significance of the discovery in relation to other amphiboles found worldwide. This taramite is unique in that it is from a skarn associated with ore and is not of magmatic origin. For the description we have used many methods, including X-ray diffraction, chemical analyses and several types of spectroscopy.
Mariko Nagashima, Teruyoshi Imaoka, Takashi Kano, Jun-ichi Kimura, Qing Chang, and Takashi Matsumoto
Eur. J. Mineral., 34, 425–438, https://doi.org/10.5194/ejm-34-425-2022, https://doi.org/10.5194/ejm-34-425-2022, 2022
Short summary
Short summary
Ferro-ferri-holmquistite (IMA2022-020), ideal formula ☐Li2(Fe32+Fe23+)Si8O22(OH)2, was found in albitized granite from the Iwagi islet, Ehime, Japan. It is a Fe2+Fe3+ analogue of holmquistite and belongs to the lithium subgroup amphiboles. Ferro-ferri-holmquistite occurs as blue acicular crystals typically replacing the biotite and is the product of metasomatic mineral replacement reactions by dissolution–reprecipitation processes associated with Na- and Li-rich hydrothermal fluids.
Peter Elliott, Ian E. Grey, William G. Mumme, Colin M. MacRae, and Anthony R. Kampf
Eur. J. Mineral., 34, 375–383, https://doi.org/10.5194/ejm-34-375-2022, https://doi.org/10.5194/ejm-34-375-2022, 2022
Short summary
Short summary
This paper describes the characterisation of a new mineral from a South Australian phosphate quarry. The characterisation included chemical analyses, infrared spectroscopy, and a determination and refinement of the crystal structure. The results showed that the mineral has a unique crystal chemistry, but it is closely related to the well-known phosphate mineral crandallite.
Cristian Biagioni, Marco E. Ciriotti, Georges Favreau, Daniela Mauro, and Federica Zaccarini
Eur. J. Mineral., 34, 365–374, https://doi.org/10.5194/ejm-34-365-2022, https://doi.org/10.5194/ejm-34-365-2022, 2022
Short summary
Short summary
The paper reports the type description of the new mineral species graulichite-(La). This is a new addition to the dussertite group within the alunite supergroup, and its discovery improves our knowledge on the crystal chemistry of this important supergroup of minerals, having both technological and environmental applications.
Frank de Wit and Stuart J. Mills
Eur. J. Mineral., 34, 321–324, https://doi.org/10.5194/ejm-34-321-2022, https://doi.org/10.5194/ejm-34-321-2022, 2022
Short summary
Short summary
The name sigismundite has been reinstated for what was previously arrojadite-(BaFe). Sigismundite honours Pietro Sigismund (1874–1962), and this paper outlines his significant contributions to Italian mineralogy.
Luboš Vrtiška, Jaromír Tvrdý, Jakub Plášil, Jiří Sejkora, Radek Škoda, Nikita V. Chukanov, Andreas Massanek, Jan Filip, Zdeněk Dolníček, and František Veselovský
Eur. J. Mineral., 34, 223–238, https://doi.org/10.5194/ejm-34-223-2022, https://doi.org/10.5194/ejm-34-223-2022, 2022
Short summary
Short summary
The study of the original material of beraunite from the type locality Hrbek, Czech Rep., from collections of the TU Bergakademie Freiberg (Germany) and National Museum Prague (Czech Republic) proved the identity of the minerals beraunite and eleonorite. Because the name beraunite has priority, we consider the name eleonorite to be redundant and proposed to abolish it. The proposal 21-D approved by the IMA discredited eleonorite and accepted the formula of beraunite Fe3+6(PO4)4O(OH)4·6H2O.
Ian Edward Grey, Peter Elliott, William Gus Mumme, Colin M. MacRae, Anthony R. Kampf, and Stuart J. Mills
Eur. J. Mineral., 34, 215–221, https://doi.org/10.5194/ejm-34-215-2022, https://doi.org/10.5194/ejm-34-215-2022, 2022
Short summary
Short summary
A reinvestigation of angastonite from the type locality has shown that it is a mixture of crystalline phases and an amorphous phase, with the published formula corresponding to the amorphous phase. A redefinition proposal for angastonite as an amorphous mineral was approved by the IMA CNMNC. Our study showed how the amorphous phase formed and how it progressively recrystallises as new crandallite-related minerals.
Yuan Xue, Ningyue Sun, Hongping He, Aiqing Chen, and Yiping Yang
Eur. J. Mineral., 34, 95–108, https://doi.org/10.5194/ejm-34-95-2022, https://doi.org/10.5194/ejm-34-95-2022, 2022
Short summary
Short summary
Liguowuite, a new member of the non-stoichiometric perovskite group minerals, ideally WO3, has been found in the Panzhihua–Xichang region, China. Liguowuite is monoclinic and is in space group P21 / n, with a = 7.32582(18) Å, b = 7.54767(18) Å, c = 7.71128(18) Å, β = 90.678(3)°, V = 426.348(19) Å3, and Z = 8. According to the hierarchical scheme for perovskite supergroup minerals, liguowuite is the first reported example of A-site vacant single oxide, i.e., a new perovskite subgroup.
Fernando Cámara, Dan Holtstam, Nils Jansson, Erik Jonsson, Andreas Karlsson, Jörgen Langhof, Jaroslaw Majka, and Anders Zetterqvist
Eur. J. Mineral., 33, 659–673, https://doi.org/10.5194/ejm-33-659-2021, https://doi.org/10.5194/ejm-33-659-2021, 2021
Short summary
Short summary
Zinkgruvanite, a barium manganese iron silicate with sulfate, is a new mineral found in drill core samples from the Zinkgruvan zinc, lead and silver mine in Sweden. It is associated with other minerals like baryte, barytocalcite, diopside and sulfide minerals. It occurs as flattened and elongated crystals up to 1 mm. It is almost black. Zinkgruvanite is closely related to the mineral yoshimuraite and based on its crystal structure, grouped with the ericssonite group of minerals.
Biljana Krüger, Evgeny V. Galuskin, Irina O. Galuskina, Hannes Krüger, and Yevgeny Vapnik
Eur. J. Mineral., 33, 341–355, https://doi.org/10.5194/ejm-33-341-2021, https://doi.org/10.5194/ejm-33-341-2021, 2021
Short summary
Short summary
This is the first description of the new mineral kahlenbergite, found in the Hatrurim Basin, Israel, which is a region with unusual pyrometamorphic rocks. Kahlenbergite is chemically and structurally characterized. It is very similar to β-alumina compounds, which are synthetic materials known for their properties as fast ion conductors. Research in the Hatrurim Basin is needed to understand the complex mechanisms that created this mineralogically diverse
hotspotof new minerals.
Antonia Cepedal, Mercedes Fuertes-Fuente, and Agustín Martin-Izard
Eur. J. Mineral., 33, 165–174, https://doi.org/10.5194/ejm-33-165-2021, https://doi.org/10.5194/ejm-33-165-2021, 2021
Pavel Škácha, Jiří Sejkora, Jakub Plášil, Zdeněk Dolníček, and Jana Ulmanová
Eur. J. Mineral., 33, 175–187, https://doi.org/10.5194/ejm-33-175-2021, https://doi.org/10.5194/ejm-33-175-2021, 2021
Short summary
Short summary
Grimmite, sulfide of cobalt and nickel, is the new mineral for the mineralogical system.
Thomas Witzke, Martin Schreyer, Benjamin Brandes, René Csuk, and Herbert Pöllmann
Eur. J. Mineral., 33, 1–8, https://doi.org/10.5194/ejm-33-1-2021, https://doi.org/10.5194/ejm-33-1-2021, 2021
Short summary
Short summary
The new mineral species freitalite, C14H10, corresponding to the aromatic hydrocarbon anthracene, has been discovered on the mine dump of the Königin Carola shaft (Paul Berndt Mine), Freital, near Dresden, Saxony, Germany. Freitalite is a product of pyrolysis of coal and was formed by sublimation from a gas phase. The mineral was identified by several analytical methods.
Stuart J. Mills, Uwe Kolitsch, Georges Favreau, William D. Birch, Valérie Galea-Clolus, and Johannes Markus Henrich
Eur. J. Mineral., 32, 637–644, https://doi.org/10.5194/ejm-32-637-2020, https://doi.org/10.5194/ejm-32-637-2020, 2020
Fahui Xiong, Xiangzhen Xu, Enrico Mugnaioli, Mauro Gemmi, Richard Wirth, Edward S. Grew, Paul T. Robinson, and Jingsui Yang
Eur. J. Mineral., 32, 557–574, https://doi.org/10.5194/ejm-32-557-2020, https://doi.org/10.5194/ejm-32-557-2020, 2020
Short summary
Short summary
Two new nanominerals: titanium monophosphide and titanium disilicide, formed at pressures of Earth’s upper mantle by the action of methane and hydrogen from the mantle on basaltic melts in the Luobusa ophiolite (Tibet). The minerals were characterized by 3D electron diffraction, which can solve the crystal structures of phases less than a micrometer in size. The results contribute to our understanding of deeply subducted crustal rocks and their exhumation back to the Earth's surface.
Yuan Xue, Guowu Li, and Yingmei Xie
Eur. J. Mineral., 32, 483–494, https://doi.org/10.5194/ejm-32-483-2020, https://doi.org/10.5194/ejm-32-483-2020, 2020
Short summary
Short summary
Wumuite, ideally KAl0.33W2.67O9 with a hexagonal tungsten bronze (HTB)-type structure, is another new mineral containing potassium and tungsten found in the Pan–Xi region in China after tewite was discovered. In this study, artificial synthetic experiments have been conducted to explore the formation process of wumuite and tewite. Wumuite was speculated to be formed by a metasomatic reaction between W-rich hydrothermal fluids and the potassium feldspar in the monzonite.
Simon Philippo, Frédéric Hatert, Yannick Bruni, Pietro Vignola, and Jiří Sejkora
Eur. J. Mineral., 32, 449–455, https://doi.org/10.5194/ejm-32-449-2020, https://doi.org/10.5194/ejm-32-449-2020, 2020
Short summary
Short summary
Luxembourgite, ideally AgCuPbBi4Se8, is a new selenide discovered at Bivels, Grand Duchy of Luxembourg. The mineral forms tiny fibres deposited on dolomite crystals. Its crystal structure is similar to those of litochlebite and watkinsonite, and can be described as an alternation of two types of anionic layers: a pseudotetragonal layer four atoms thick and a pseudohexagonal layer one atom thick. The species named for the city of Luxembourg, close to its locality of discovery.
Anthony R. Kampf, Barbara P. Nash, Jakub Plášil, Jason B. Smith, and Mark N. Feinglos
Eur. J. Mineral., 32, 373–385, https://doi.org/10.5194/ejm-32-373-2020, https://doi.org/10.5194/ejm-32-373-2020, 2020
Cristiano Ferraris, Isabella Pignatelli, Fernando Cámara, Giancarlo Parodi, Sylvain Pont, Martin Schreyer, and Fengxia Wei
Eur. J. Mineral., 32, 355–365, https://doi.org/10.5194/ejm-32-355-2020, https://doi.org/10.5194/ejm-32-355-2020, 2020
Short summary
Short summary
Laurentthomasite is a new mineral from Madagascar showing a very strong dichroism going from deep blue to yellow-green colours. The physical and chemical characteristics of this gem quality mineral bring it to the attention of the jewel industry as well as collectors of cut stones.
Elena Bonaccorsi and Paolo Orlandi
Eur. J. Mineral., 32, 347–354, https://doi.org/10.5194/ejm-32-347-2020, https://doi.org/10.5194/ejm-32-347-2020, 2020
Short summary
Short summary
Molybdates are of a great interest due to their ionic conductivity, negative thermal expansion, and immobilization of radionuclides. The new mineral tancaite-(Ce), FeCe(MoO4)3•3H2O, shows a new structure type never observed in natural and synthetic molybdates. Its cubic average structure may be described as a derivative of the perovskite structure, in which Fe-centred octahedra are linked through MoO4 groups. The ordering of Mo and O atoms results in one or more complex superstructures.
Natale Perchiazzi, Ulf Hålenius, Nicola Demitri, and Pietro Vignola
Eur. J. Mineral., 32, 265–273, https://doi.org/10.5194/ejm-32-265-2020, https://doi.org/10.5194/ejm-32-265-2020, 2020
Short summary
Short summary
Type material for heliophyllite, preserved in the Swedish Museum of Natural History in Stockholm, was re-investigated through a combined EPMA (electron probe X-ray microanalysis), Raman, and X-ray powder diffraction (XRPD) and single-crystal study. EPMA chemical data, together with Raman and single-crystal structural studies, point to heliophyllite being identical to ecdemite. XRPD synchrotron data highlight the presence of a minor quantity of finely admixed finnemanite in the analyzed material.
Jan Parafiniuk and Frédéric Hatert
Eur. J. Mineral., 32, 215–217, https://doi.org/10.5194/ejm-32-215-2020, https://doi.org/10.5194/ejm-32-215-2020, 2020
Ekaterina Kaneva, Tatiana Radomskaya, Ludmila Suvorova, Irina Sterkhova, and Mikhail Mitichkin
Eur. J. Mineral., 32, 137–146, https://doi.org/10.5194/ejm-32-137-2020, https://doi.org/10.5194/ejm-32-137-2020, 2020
Tomas Husdal, Ian E. Grey, Henrik Friis, Fabrice Dal Bo, Anthony R. Kampf, Colin M. MacRae, W. Gus Mumme, Ole-Thorstein Ljøstad, and Finlay Shanks
Eur. J. Mineral., 32, 89–98, https://doi.org/10.5194/ejm-32-89-2020, https://doi.org/10.5194/ejm-32-89-2020, 2020
Short summary
Short summary
This paper describes the characterization of a new mineral from the Oumlil mine in the Bou Azzer cobalt mining district in Morocco. This mining district is one of the world's largest producers of the important element cobalt. This study on the new mineral halilsarpite provides useful information on the results of chemical weathering processes on the primary arsenide minerals at the mine.
Cited articles
Andreozzi, G. B., Bosi, F., and Longo, M.: Linking Mössbauer and structural parameters in elbaite-schorl-dravite tourmalines, Am. Mineral., 93, 658–666, 2008.
Armbruster, T., Bonazzi, P., Akasaka, M., Bermanec, V., Chopin, C.,
Gieré, R., Heuss-Assbichler, S., Liebscher, A., Menchetti, S., Pan, Y.,
and Pasero, M.: Recommended nomenclature of epidote-group minerals, Eur. J.
Mineral., 18, 551–567, 2006.
Bačík, P., Cempírek, J., Uher, P., Novák, M., Ozdín,
D., Filip, J., Škoda, R., Breiter, K., Klementová, M., Ďuda, R.,
and Groat, L. A.: Oxy-schorl,
Na(Fe
Bačík, P., Ozdín, D., Uher P., and Chovan, M.: Crystal
chemistry and evolution of tourmaline in tourmalinites from Zlatá Idka,
Slovakia, J. Geosci., 67, 209–222, 2022.
Bechi, E.: Intorno ad un nuovo minerale, Cont. Atti Accad. Georg. Firenze,
30, 84–87, 1852.
Benvenuti, M., Lattanzi, P., and Tanelli, G.: Tourmalinite-associated Pb-Zn-Ag
mineralization at Bottino, Apuane Alps, Italy: geologic setting, mineral
textures, and sulfide chemistry, Econ. Geol., 84, 1277–1292, 1989.
Benvenuti, M., Costagliola, P., Lattanzi, P., and Tanelli, G.: Mineral
chemistry of tourmalines from the Bottino mining district, Apuane Alps
(Italy), Eur. J. Mineral., 3, 537–548, 1991.
Biagioni, C., Mauro, D., and Pasero, M.: Sulfates from the pyrite ore
deposits of the Apuan Alps (Tuscany, Italy): A review, Minerals, 10, 1092, https://doi.org/10.3390/min10121092,
2020.
Bonatti, S.: La roccia porfiroide di Forno Volasco, Atti Soc. Tosc. Sci.
Nat. Mem., 43, 210–216, 1933.
Bosi, F.: Bond-valence constraints around the O1 site of tourmaline,
Mineral. Mag., 77, 343–351, 2013.
Bosi, F. and Andreozzi, G. B.: A critical comment on Ertl et al. (2012):
“Limitations of Fe2+ and Mn2+ site occupancy in tourmaline:
Evidence from Fe2+- and Mn2+-rich tourmaline”, Am. Mineral., 98,
2183–2192, 2013.
Bosi, F. and Skogby, H.: Oxy-dravite,
Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O, a
new mineral species of the tourmaline supergroup, Am. Mineral., 98,
1442–1448, 2013.
Bosi, F., Skogby, H., Lazor, P., and Reznitskii, L.: Atomic arrangements around
the O3 site in Al- and Cr-rich oxy-tourmalines: a combined EMP, SREF, FTIR
and Raman study, Phys. Chem. Miner., 42, 441–453, 2015.
Bosi, F., Biagioni, C., and Oberti, R.: On the chemical identification and
classification of minerals, Minerals, 9, 591, https://doi.org/10.3390/min9100591, 2019.
Brese, N. E. and O'Keeffe, M.: Bond-valence parameters for solids, Acta
Crystallogr. B, 47, 192–197, 1991.
Bruker AXS Inc.: APEX 3, Bruker Advanced X-ray Solutions, Madison,
Wisconsin, USA, 2016.
da Fonseca-Zang, W. A., Zang, J. W., and Hofmeister, W.: The Ti-influence on
the tourmaline color, J. Braz. Chem. Soc., 19, 1186–1192, 2008.
Dini, A., Mazzarini, F., Musumeci, G., and Rocchi, S.: Multiple
hydro-fracturing by boron-rich fluids in the Late Miocene contact aureole of
eastern Elba Island (Tuscany, Italy), Terra Nova, 20, 318–326, 2008.
Dottorini, V.: Cristallochimica di specie del supergruppo della tormalina
dalla Toscana, thesis, University of Pisa, 283 pp., 2019.
Dutrow, B. and Henry, D.: Calcium-rich dravite from the Arignac Gypsum Mine,
France: Implications for tourmaline development in a sulfate-rich, highly
magnesian meta-evaporite, J. Geosci., 67, 191–207, 2022.
Flack, H. D.: On enantiomorph-polarity estimation, Acta Crystallogr. A, 39,
876–881, 1983.
Flégr, T., Novák, M., and Cempírek, J.: New occurrence of bosiite
in the Řečice pegmatite, Czech Republic, in: New
Minerals and Mineralogy in the 21st century, edited by: Gadas, P., International Scientific
Symposium, Jáchymov, Minera Analytica, Prague, 23–25, 2016.
Gadas, P., Novák, M., Škoda, R., Cempírek, J., Zachař, A.,
Flégr, T., and Pezzotta, F.: Titanium in tourmalines from granitic
pegmatites and their exocontacts, Can. Mineral., 57, 745–747, 2019.
Gasharova, B., Mihailova, B., and Konstantinov, L.: Raman spectra of various
types of tourmaline, Eur. J. Mineral., 9, 935–940, 1997.
Gonzalez-Carreño, T., Fernandez, M., and Sanz, J.: Infrared and electron
microprobe analysis in tourmalines, Phys. Chem. Miner., 15, 452–460, 1988.
Grice, J. D. and Ercit, T. S.: Ordering of Fe and Mg in the tourmaline crystal
structure: the correct formula, Neues Jb. Miner. Monat., 165, 245–266, 1993.
Henry, D. and Dutrow, B: Metamorphic tourmaline and its petrologic
applications, Rev. Mineral. Geochem., 33, 503–557, 1996.
Henry, D. J., Guidotti, C. V., and Thomson, J. A.: The Ti-saturation surface for
low-to-medium pressure metapelitic biotites: Implications for geothermometry
and Ti-substitution mechanisms, Am. Mineral., 90, 316–328, 2005.
Henry, D., Novák, M., Hawthorne, F. C., Ertl, A., Dutrow, B. L., Uher, P.,
and Pezzotta, F.: Nomenclature of the tourmaline-supergroup minerals, Am.
Mineral., 96, 895–913, 2011.
Konzett, J., Krenn, K., Hauzenberger, C., Whitehouse, M., and Hoinkes, G.:
High-pressure tourmaline formation and fluid activity in Fe–Ti-rich
eclogites from the Kreuzeck Mountains, Eastern Alps, Austria, J. Petrol.,
53, 99–125, 2012.
Kraus, W. and Nolze, G.: Powder Cell – a program for the representation and
manipulation of crystal structures and calculation of the resulting X-ray
powder patterns, J. Appl. Crystallogr., 29, 301–303, 1996.
Lottermoser, B. G. and Plimer, I. R.: Chemical variation in tourmalines,
Umberatana, South Australia, Neues Jb. Miner. Monat., 7, 314–326, 1987.
Mandarino, J. A.: The Gladstone-Dale relationship. Part III. Some general
applications, Can. Mineral., 17, 71–76, 1979.
Mandarino, J. A.: The Gladstone-Dale relationship. Part IV. The compatibility
concept and some application, Can. Mineral., 19, 441–450, 1981.
Mauro, D., Biagioni, C., Hålenius, U., Skogby, H., Dottorini, V., and
Bosi, F.: Nickel- and Fe3+-rich oxy-dravite from the Artana Mn
prospect, Apuan Alps (Tuscany, Italy), J. Geosci., 67, 141–150, 2022.
Nabelek, P. I.: Formation of metasomatic tourmalinites in reduced schists
during the Black Hills orogeny, South Dakota, Am. Mineral., 106, 282–289,
2021.
Novák, M., Škoda, R., Filip, J., Macek, I., and Vaculovič, T.:
Compositional trends in tourmaline from intragranitic NYF pegmatites of the
Třebíč pluton, Czech Republic: an electron microprobe,
Mössbauer and LA-ICP-MS study, Can. Mineral., 49, 359–380, 2011.
Orlandi, P. and Pasero, M.: Allanite-(La) from Buca della Vena mine, Apuan
Alps, Italy, an epidote-group mineral, Can. Mineral., 44, 63–68, 2006.
Orlando, A., Ruggieri, G., Chiarantini, L., Montegrossi, G., and Rimondi, V.: Experimental
Investigation of Biotite-Rich Schist Reacting with B-Bearing Fluids at Upper
Crustal Conditions and Correlated Tourmaline Formation, Minerals, 7, 155, https://doi.org/10.3390/min7090155,
2017.
Paoli, G., Stokke, H. H., Rocchi, S., Sirevaag, H., Ksienzyk, A. K., Jacobs,
J., and Košler, J.: Basement provenance revealed by U-Pb detrital zircon
ages: a tale of African and European heritage in Tuscany, Italy, Lithos,
277, 376–387, 2017.
Pesquera, A., Gil-Crespo, P. P., Torres-Ruiz, F., Torres-Ruiz, J., and Roda-Robles, E.: A multiple regression method for estimating Li in tourmaline from electron microprobe analyses, Mineral. Mag., 80, 1129–1133, 2016.
Pieruccioni, D., Galanti, Y., Biagioni, C., and Molli, G.: The geological map
of the Fornovolasco area, Apuan Alps (Tuscany, Italy), J. Maps, 14,
357–367, 2018.
Povondra, P.: The crystal chemistry of tourmalines of the schorl-dravite
series, Acta U. Carol. Geol., 3, 223–264, 1981.
Prescher, C., McCammon, C., and Dubrovinsky, L.: MossA: a program for analyzing energy-domain Mössbauer spectra from conventional and synchrotron sources, J. Appl. Crystallogr., 45, 329–331, 2012.
Ribeiro da Costa, I., Ribeiro Antunes, I. M. H., and Récio, C.: The
Rossman, G. R. and Mattson, S. M.: Yellow, Mn-rich elbaite with Mn-Ti
intervalence charge-transfer, Am. Mineral., 71, 599–602, 1986.
Scribner, E. D., Groat, L. A., and Cempírek, J.: Mineralogy of Ti-bearing,
Al-deficient tourmaline assemblages associated with lamprophyre dikes near
the O'Grady Batholith, Northwest Territories, Canada, J. Geosci., 63,
123–135, 2018.
Shannon, R. D.: Revised effective ionic radii and systematic studies of
interatomic distances in halides and chalcogenides, Acta Crystallogr. A, 32,
751–767, 1976.
Sheldrick, G. M.: Crystal structure refinement with SHELXL, Acta
Crystallogr. C, 71, 3–8, 2015.
Vereshchagin, O. S., Wunder, B., Baksheev, I. A., Wilke, F. D. H., Vlasenko,
N. S., and Frank-Kamenetskaya, O.: Ti4+ and Sn4+-bearing tourmalines
– pressure control and comparison of synthetic and natural counterparts, J.
Geosci., 67, 163–171, 2022.
Vezzoni, S., Biagioni, C., D'Orazio, M., Pieruccioni, D., Galanti, Y.,
Petrelli, M., and Molli, G.: Evidence of Permian magmatism in the Alpi Apuane
metamorphic complex (Northern Apennines, Italy): New hints for the
geological evolution of the basement of the Adria plate, Lithos, 318–319,
104–123, 2018.
Vezzoni, S., Pieruccioni, D., Galanti, Y., Biagioni, C., and Dini, A.:
Permian hydrothermal alteration preserved in polymetamorphic basement and
constraints for ore-genesis (Alpi Apuane, Italy), Geosciences, 10, 399, https://doi.org/10.3390/geosciences10100399,
2020.
Warr, L. N.: IMA-CNMNC approved mineral symbols, Mineral. Mag., 85, 291–320,
2021.
Watenphul, A., Burgdorf, M., Schlüter, J., Horn, I., Malcherek, T., and
Mihailova, B.: Exploring the potential of Raman spectroscopy for
crystallochemical analyses of complex hydrous silicates: II. Tourmalines,
Am. Mineral., 101, 970–985, 2016a.
Watenphul, A., Schlüter, J., Bosi, F., Skogby, H., Malcherek, T., and
Mihailova, B.: Influence of the octahedral cationic-site occupancies on the
framework vibrations of Li-free tourmalines, with implications for
estimating temperature and oxygen fugacity in host rocks, Am. Mineral., 101,
2554–2563, 2016b.
Wilson, A. J. C. (Ed.): International Tables for Crystallography Volume C:
Mathematical, Physical and Chemical Tables, Kluwer Academic Publishers,
Dordrecht, the Netherlands, 1992.
Wojdyr, M.: Fityk: a general-purpose peak fitting program, J. Appl. Crystallogr., 43, 1126–1128, 2010.
Woodford, D. T., Sisson, V. B., and Leeman, W. P.: Boron metasomatism of the
Alta stock contact aureole, Utah: evidence from borates, mineral chemistry
and geochemistry, Am. Mineral., 86, 513–533, 2001.
Wright, S. E., Foley, J. A., and Hughes, J. M.: Optimization of site occupancies
in minerals using quadratic programming, Am. Mineral., 85, 524–531, 2000.
Žáček, V., Frýda, J., Petrov, A., and Hyršl, J.:
Tourmalines of the povondraite – (oxy)dravite series from the cap rock of
meta-evaporite in Alto Chapare, Cochacamba, Bolivia, J. Czech Geol. Soc.,
45, 3–12, 2000.
Short summary
Dutrowite is the first tourmaline supergroup minerals having Ti as a species-defining chemical constituent. Its finding improves our knowledge on the crystal chemistry of this important mineral group and allows us to achieve a better picture of the mechanisms favouring the incorporation of Ti.
Dutrowite is the first tourmaline supergroup minerals having Ti as a species-defining chemical...
