Articles | Volume 35, issue 6
https://doi.org/10.5194/ejm-35-897-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-35-897-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
New minerals, nomenclature, and classification
| 
01 Nov 2023
New minerals, nomenclature, and classification |
| 01 Nov 2023
| 01 Nov 2023
Tetrahedrite-(Cd), Cu6(Cu4Cd2)Sb4S13, from Radětice near Příbram, Czech Republic: the new Cd member of the tetrahedrite group
Jiří Sejkora
CORRESPONDING AUTHOR
Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Prague 9, Czech Republic
Cristian Biagioni
Dipartimento di Scienze della Terra, Università di Pisa, Via Santa Maria, 53, 56126 Pisa, Italy
Pavel Škácha
Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Prague 9, Czech Republic
Mining Museum Příbram, Hynka Kličky Place 293, 261 01 Příbram VI, Czech Republic
Silvia Musetti
Dipartimento di Scienze della Terra, Università di Pisa, Via Santa Maria, 53, 56126 Pisa, Italy
Anatoly V. Kasatkin
Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071 Moscow, Russia
Fabrizio Nestola
Dipartimento di Geoscienze, Università di Padova, Via Gradenigo 6, 35131, Padua, Italy
Related authors
Ferdinando Bosi, Federico Pezzotta, Henrik Skobgy, Riccardo Luppi, Paolo Ballirano, Ulf Hålenius, Gioacchino Tempesta, Giovanna Agrosì, and Jiří Sejkora
Eur. J. Mineral., 37, 505–516, https://doi.org/10.5194/ejm-37-505-2025, https://doi.org/10.5194/ejm-37-505-2025, 2025
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This study describes the elbaite neotype, found in crystals from a site on Elba island, Italy. Researchers analyzed these nearly colorless crystals and found that their formation was influenced by earlier changes in the surrounding rock. As different minerals formed first, they set the stage for elbaite to develop later in deeper spaces. This work helps us understand how changes in the local environment affect how and when certain minerals grow.
Cristian Biagioni, Jiří Sejkora, Yves Moëlo, Georges Favreau, Vincent Bourgoin, Jean-Claude Boulliard, Elena Bonaccorsi, Daniela Mauro, Silvia Musetti, Marco Pasero, Natale Perchiazzi, and Jana Ulmanová
Eur. J. Mineral., 37, 319–335, https://doi.org/10.5194/ejm-37-319-2025, https://doi.org/10.5194/ejm-37-319-2025, 2025
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Ginelfite is a new Ag–Fe–Tl–Pb sulfosalt described from the hydrothermal deposit of Jas Roux (France). It belongs to the so-called boxwork sulfosalts, a group of species showing the highest structural complexity among this group of chalcogenides. This very complex structure is probably stabilized by the occurrence of minor chemical constituents (Tl, Fe) occupying specific structural positions.
Cristian Biagioni, Daniela Mauro, Jiří Sejkora, Zdeněk Dolníček, Andrea Dini, and Radek Škoda
Eur. J. Mineral., 37, 39–52, https://doi.org/10.5194/ejm-37-39-2025, https://doi.org/10.5194/ejm-37-39-2025, 2025
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Dacostaite is a new fluoride–arsenate mineral found in the Sb(Au) deposit of the Cetine di Cotorniano Mine (Tuscany, Italy). It shows a novel crystal structure formed by heteropolyhedral layers and isolated Mg(H2O)6 groups connected by H bonds. The heteropolyhedral layers are similar to those occurring in alunite-supergroup minerals, and this is a further example of the ability of nature to use similar modules in forming the large number of currently known structural arrangements.
Cristian Biagioni, Enrico Mugnaioli, Sofia Lorenzon, Daniela Mauro, Silvia Musetti, Jiří Sejkora, Donato Belmonte, Nicola Demitri, and Zdeněk Dolníček
Eur. J. Mineral., 36, 1011–1022, https://doi.org/10.5194/ejm-36-1011-2024, https://doi.org/10.5194/ejm-36-1011-2024, 2024
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Nannoniite, Al2(OH)5F, is a new mineral species discovered in the Cetine di Cotorniano mine (Tuscany, Italy). Its description was possible through a multi-technique approach, and its crystal structure was solved through three-dimensional electron diffraction, revealing close relations with gibbsite. The partial replacement of (OH) by F induces subtle by detectable structural changes. This study reveals that Al hydroxides could be a source of F in geological environments.
Richard Pažout, Michal Dušek, Jiří Sejkora, Jakub Plášil, Gheorghe Ilinca, and Zdeněk Dolníček
Eur. J. Mineral., 36, 641–656, https://doi.org/10.5194/ejm-36-641-2024, https://doi.org/10.5194/ejm-36-641-2024, 2024
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A new sulfosalt mineral species, lazerckerite, Ag3.7Pb4.6(Sb7.9Bi3.8)Σ11.7S24, has been found, identified, structurally solved, and approved by the IMA. The mineral belongs to the Sb–Bi mixed members of the andorite branch of the lillianite homologous series. The description and characterization of the mineral are presented, and the ways of distinguishing the mineral from other similar members of the group on the basis of chemical results are explained.
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
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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.
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
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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.
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
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Grimmite, sulfide of cobalt and nickel, is the new mineral for the mineralogical system.
Ferdinando Bosi, Federico Pezzotta, Henrik Skobgy, Riccardo Luppi, Paolo Ballirano, Ulf Hålenius, Gioacchino Tempesta, Giovanna Agrosì, and Jiří Sejkora
Eur. J. Mineral., 37, 505–516, https://doi.org/10.5194/ejm-37-505-2025, https://doi.org/10.5194/ejm-37-505-2025, 2025
Short summary
Short summary
This study describes the elbaite neotype, found in crystals from a site on Elba island, Italy. Researchers analyzed these nearly colorless crystals and found that their formation was influenced by earlier changes in the surrounding rock. As different minerals formed first, they set the stage for elbaite to develop later in deeper spaces. This work helps us understand how changes in the local environment affect how and when certain minerals grow.
Giuseppe Illuminati, Silvia Musetti, Fabio Bellatreccia, Cristian Biagioni, Enrico Caprilli, Ahmad Rabiee, and Marco E. Ciriotti
Eur. J. Mineral., 37, 483–504, https://doi.org/10.5194/ejm-37-483-2025, https://doi.org/10.5194/ejm-37-483-2025, 2025
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In this work, we present the most iron-rich chrysoberyl discovered to date, found in the Sabatini Volcanic Complex (Latium, Italy). We provide a comprehensive overview of its chemical, structural, spectroscopic, and optical properties. The characterization of this chrysoberyl reveals several unique features, offering valuable insights into its genetic model and geochemical constraints, which are consistent with existing literature on the Sabatini complex and with ongoing research.
Cristian Biagioni, Jiří Sejkora, Yves Moëlo, Georges Favreau, Vincent Bourgoin, Jean-Claude Boulliard, Elena Bonaccorsi, Daniela Mauro, Silvia Musetti, Marco Pasero, Natale Perchiazzi, and Jana Ulmanová
Eur. J. Mineral., 37, 319–335, https://doi.org/10.5194/ejm-37-319-2025, https://doi.org/10.5194/ejm-37-319-2025, 2025
Short summary
Short summary
Ginelfite is a new Ag–Fe–Tl–Pb sulfosalt described from the hydrothermal deposit of Jas Roux (France). It belongs to the so-called boxwork sulfosalts, a group of species showing the highest structural complexity among this group of chalcogenides. This very complex structure is probably stabilized by the occurrence of minor chemical constituents (Tl, Fe) occupying specific structural positions.
Tonči Balić-Žunić, Anna Garavelli, Donatella Mitolo, Fabrizio Nestola, Martha Giovanna Pamato, Maja Bar Rasmussen, and Morten Bjerkvig Jølnæs
Eur. J. Mineral., 37, 79–89, https://doi.org/10.5194/ejm-37-79-2025, https://doi.org/10.5194/ejm-37-79-2025, 2025
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Heimaeyite (Na3Al(SO4)3) has been found in fumaroles on Eldfell volcano, which lies on the island of Heimaey, Iceland. Its crystal structure contains Al–sulfate chains and belongs to a known structure type that also comprises K–Nb, K–Ta, Na–V, and Na–Fe representatives. We registered small Fe–Al substitution in heimaeyite, which might indicate a solid solution between Na–Al and Na–Fe compounds. We investigated the specimen with electron microscopy, an electron microprobe, and X-ray diffraction.
Cristian Biagioni, Daniela Mauro, Jiří Sejkora, Zdeněk Dolníček, Andrea Dini, and Radek Škoda
Eur. J. Mineral., 37, 39–52, https://doi.org/10.5194/ejm-37-39-2025, https://doi.org/10.5194/ejm-37-39-2025, 2025
Short summary
Short summary
Dacostaite is a new fluoride–arsenate mineral found in the Sb(Au) deposit of the Cetine di Cotorniano Mine (Tuscany, Italy). It shows a novel crystal structure formed by heteropolyhedral layers and isolated Mg(H2O)6 groups connected by H bonds. The heteropolyhedral layers are similar to those occurring in alunite-supergroup minerals, and this is a further example of the ability of nature to use similar modules in forming the large number of currently known structural arrangements.
Cristian Biagioni, Enrico Mugnaioli, Sofia Lorenzon, Daniela Mauro, Silvia Musetti, Jiří Sejkora, Donato Belmonte, Nicola Demitri, and Zdeněk Dolníček
Eur. J. Mineral., 36, 1011–1022, https://doi.org/10.5194/ejm-36-1011-2024, https://doi.org/10.5194/ejm-36-1011-2024, 2024
Short summary
Short summary
Nannoniite, Al2(OH)5F, is a new mineral species discovered in the Cetine di Cotorniano mine (Tuscany, Italy). Its description was possible through a multi-technique approach, and its crystal structure was solved through three-dimensional electron diffraction, revealing close relations with gibbsite. The partial replacement of (OH) by F induces subtle by detectable structural changes. This study reveals that Al hydroxides could be a source of F in geological environments.
Richard Pažout, Michal Dušek, Jiří Sejkora, Jakub Plášil, Gheorghe Ilinca, and Zdeněk Dolníček
Eur. J. Mineral., 36, 641–656, https://doi.org/10.5194/ejm-36-641-2024, https://doi.org/10.5194/ejm-36-641-2024, 2024
Short summary
Short summary
A new sulfosalt mineral species, lazerckerite, Ag3.7Pb4.6(Sb7.9Bi3.8)Σ11.7S24, has been found, identified, structurally solved, and approved by the IMA. The mineral belongs to the Sb–Bi mixed members of the andorite branch of the lillianite homologous series. The description and characterization of the mineral are presented, and the ways of distinguishing the mineral from other similar members of the group on the basis of chemical results are explained.
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
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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
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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.
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
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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.
Ross J. Angel, Mattia L. Mazzucchelli, Kira A. Musiyachenko, Fabrizio Nestola, and Matteo Alvaro
Eur. J. Mineral., 35, 461–478, https://doi.org/10.5194/ejm-35-461-2023, https://doi.org/10.5194/ejm-35-461-2023, 2023
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We have developed the thermodynamic theory of the properties of inclusions consisting of more than one phase, including inclusions containing solids plus a fluid. We present a software utility that enables for the first time the entrapment conditions of multiphase inclusions to be determined from the measurement of their internal pressure when that is measured in a laboratory.
Yanjuan Wang, Fabrizio Nestola, Huaikun Li, Zengqian Hou, Martha G. Pamato, Davide Novella, Alessandra Lorenzetti, Pia Antonietta Antignani, Paolo Cornale, Jacopo Nava, Guochen Dong, and Kai Qu
Eur. J. Mineral., 35, 361–372, https://doi.org/10.5194/ejm-35-361-2023, https://doi.org/10.5194/ejm-35-361-2023, 2023
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In this work we have applied the elastic geobarometry approach to a Chinese diamond in order to determine the depth of formation of an olivine-bearing diamond. Together with the temperature of residence at which the diamond resided in the mantle, we were able to discover that the diamond was formed at about 190 km depth. Beyond the geological meaning of our results, this work could be a reference paper for future works on Chinese diamonds using elastic geobarometry.
Cristian Biagioni, Ferdinando Bosi, Daniela Mauro, Henrik Skogby, Andrea Dini, and Federica Zaccarini
Eur. J. Mineral., 35, 81–94, https://doi.org/10.5194/ejm-35-81-2023, https://doi.org/10.5194/ejm-35-81-2023, 2023
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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.
Yanjuan Wang, Fabrizio Nestola, Zengqian Hou, Xiangping Gu, Guochen Dong, Zhusen Yang, Guang Fan, Zhibin Xiao, and Kai Qu
Eur. J. Mineral., 35, 65–74, https://doi.org/10.5194/ejm-35-65-2023, https://doi.org/10.5194/ejm-35-65-2023, 2023
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Bobtraillite is an extremely rare cyclosilicate with a unique composition and complex structure. In this paper, we describe the second occurrence of the extremely rare complex zirconium silicate. The results suggest that the ideal formula of bobtraillite could be written as (Na, □)12(□, Na)12Sr12Zr14(Si3O9)10[Si2BO7(OH)2]6·12H2O.
Luca Faccincani, Valerio Cerantola, Fabrizio Nestola, Paolo Nimis, Luca Ziberna, Leonardo Pasqualetto, Aleksandr I. Chumakov, Jeffrey W. Harris, and Massimo Coltorti
Eur. J. Mineral., 34, 549–561, https://doi.org/10.5194/ejm-34-549-2022, https://doi.org/10.5194/ejm-34-549-2022, 2022
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We determined the physical conditions at the time of its entrapment for an inclusion pair hosted in a Siberian diamond (Udachnaya kimberlite) and found that it equilibrated under relatively oxidized conditions, near the enstatite–magnesite–olivine–diamond (EMOD) buffer, similarly to Udachnaya xenoliths originating from comparable depths. These results can be reconciled with models suggesting relatively oxidized, water-rich CHO fluids as the most likely parents for lithospheric diamonds.
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
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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.
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
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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.
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
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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.
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
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Grimmite, sulfide of cobalt and nickel, is the new mineral for the mineralogical system.
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
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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.
Claudia Agnini, Martha G. Pamato, Gabriella Salviulo, Kim A. Barchi, and Fabrizio Nestola
Adv. Geosci., 53, 155–167, https://doi.org/10.5194/adgeo-53-155-2020, https://doi.org/10.5194/adgeo-53-155-2020, 2020
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This work provides updated scenario on the underrepresentation of women in the Italian university system in the area of geosciences in the last two decades. Data highlight an increase in the number of female full and associate professors whereas the low number of female non-permanent researchers raises strong concerns. Over different areas of geosciences, Paleontology represents the only field in which the gap is filled whereas all the other disciplines suffer a gender imbalance.
Related subject area
New minerals and systematic mineralogy
Elbaite, the neotype material from the Rosina pegmatite, San Piero in Campo, Elba island, Italy
Moabite, NiFe3+(PO4)O, a new natural oxyphosphate
Ginelfite, Ag2(Ag0.5Fe0.5)TlPb24.5(Sb,As)32.5S75.5, a new boxwork sulfosalt from Jas Roux, France: occurrence and crystal structure
Skogbyite, Zr(Mg2Mn3+4)SiO12, a new zirconium mineral in the braunite group from Långban, Bergslagen, Sweden
The fate of an old Mn–Fe amphibole species: description of clino-ferro-suenoite, □Mn2Fe2+5Si8O22(OH)2
Fluormacraeite, [(H2O)K]Mn2(Fe2Ti)(PO4)4[OF](H2O)10 ⋅ 4H2O, the first type mineral from the Plößberg pegmatite, Upper Palatinate, Bavaria, Germany
Nolanite supergroup of minerals: nomenclature and classification
Heimaeyite, Na3Al(SO4)3, a new mineral from the fumaroles on Eldfell volcano, Iceland
Andreybulakhite, Ni(C2O4) ⋅ 2H2O, the first natural nickel oxalate
Dacostaite, K(Mg2Al)[Mg(H2O)6]2(AsO4)2F6 ⋅ 2H2O, a new fluoride–arsenate mineral from the Cetine di Cotorniano Mine (Tuscany, Italy)
Nannoniite, Al2(OH)5F, a new mineral from the Cetine di Cotorniano mine (Tuscany, Italy)
Karlseifertite, Pb(Ga2Ge)(AsO4)2(OH)6, a new dussertite-group mineral, from Tsumeb, Namibia
Bonacinaite, Sc(AsO4) ⋅ 2H2O, the first scandium arsenate
Lazerckerite, Ag3.75Pb4.5(Sb7.75Bi4)S24, from Kutná Hora, Czech Republic: a new Sb–Bi member of the andorite branch of the lillianite homologous series
Rotherkopfite, KNa2(Fe2+2.5Ti4+1.5)Fe2+(Si4O12)2, a new neptunite-group mineral without essential lithium, from Rother Kopf, Eifel volcanic fields, Germany
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
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
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
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
Ferdinando Bosi, Federico Pezzotta, Henrik Skobgy, Riccardo Luppi, Paolo Ballirano, Ulf Hålenius, Gioacchino Tempesta, Giovanna Agrosì, and Jiří Sejkora
Eur. J. Mineral., 37, 505–516, https://doi.org/10.5194/ejm-37-505-2025, https://doi.org/10.5194/ejm-37-505-2025, 2025
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This study describes the elbaite neotype, found in crystals from a site on Elba island, Italy. Researchers analyzed these nearly colorless crystals and found that their formation was influenced by earlier changes in the surrounding rock. As different minerals formed first, they set the stage for elbaite to develop later in deeper spaces. This work helps us understand how changes in the local environment affect how and when certain minerals grow.
Sergey N. Britvin, Mikhail N. Murashko, Maria G. Krzhizhanovskaya, Yevgeny Vapnik, Natalia S. Vlasenko, Oleg S. Vereshchagin, Dmitrii V. Pankin, and Evgeny A. Vasiliev
Eur. J. Mineral., 37, 353–363, https://doi.org/10.5194/ejm-37-353-2025, https://doi.org/10.5194/ejm-37-353-2025, 2025
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This paper reports a new natural oxyphosphate, the first mineral that crystallizes in the α-Fe2PO5 structure type. It is isotypic to a series of synthetic oxyphosphates with promising magnetic and electrochemical properties.
Cristian Biagioni, Jiří Sejkora, Yves Moëlo, Georges Favreau, Vincent Bourgoin, Jean-Claude Boulliard, Elena Bonaccorsi, Daniela Mauro, Silvia Musetti, Marco Pasero, Natale Perchiazzi, and Jana Ulmanová
Eur. J. Mineral., 37, 319–335, https://doi.org/10.5194/ejm-37-319-2025, https://doi.org/10.5194/ejm-37-319-2025, 2025
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Ginelfite is a new Ag–Fe–Tl–Pb sulfosalt described from the hydrothermal deposit of Jas Roux (France). It belongs to the so-called boxwork sulfosalts, a group of species showing the highest structural complexity among this group of chalcogenides. This very complex structure is probably stabilized by the occurrence of minor chemical constituents (Tl, Fe) occupying specific structural positions.
Erik Jonsson, Ulf Hålenius, Jaroslaw Majka, and Ferdinando Bosi
Eur. J. Mineral., 37, 269–277, https://doi.org/10.5194/ejm-37-269-2025, https://doi.org/10.5194/ejm-37-269-2025, 2025
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Skogbyite, with the chemical formula Zr(Mg2+2Mn3+4)SiO12, is a new species in the braunite group of minerals. It was discovered in a complex mineral assemblage, essentially a very poor manganese ore, from the Långban Fe–Mn oxide deposit, Värmland County, Bergslagen ore province, Sweden. It is named after the Swedish mineralogist Henrik Skogby (b. 1956). It is a new mineral attesting to the localised mobility and reactivity of zirconium under very special geological conditions.
Dan Holtstam, Fernando Cámara, Henrik Skogby, Andreas Karlsson, and Alessandro De Leo
Eur. J. Mineral., 37, 221–231, https://doi.org/10.5194/ejm-37-221-2025, https://doi.org/10.5194/ejm-37-221-2025, 2025
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The mineral clino-ferro-suenoite, with the chemical formula ◻Mn2Fe2+5Si8O22(OH)2, was historically named “dannemorite” or “manganogrunerite” and is a member of the amphibole supergroup. It is now formally approved by the International Mineralogical Association. It occurs in iron–manganese-bearing rock from the Hilläng mines, Dalarna, Sweden, and is associated with the minerals fayalite, spessartine, ferro-actinolite, calcite, magnetite and pyrite. It formed by replacement of Mn-bearing fayalite.
Ian E. Grey, Christian Rewitzer, Rupert Hochleitner, Anthony R. Kampf, Stephanie Boer, William G. Mumme, Nicholas C. Wilson, and Cameron J. Davidson
Eur. J. Mineral., 37, 169–179, https://doi.org/10.5194/ejm-37-169-2025, https://doi.org/10.5194/ejm-37-169-2025, 2025
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Fluormacraeite is the first type mineral to be described from the Plößberg pegmatite, Upper Palatinate, Bavaria, Germany. The crystal structure of fluormacraeite has been refined using synchrotron data that has resolved a small monoclinic distortion due to ordering of K and H2O. The general crystal–chemical properties of the monoclinic paulkerrite-group minerals are discussed.
Nikita V. Chukanov, Vasilisa M. Gridchina, Ramiza K. Rastsvetaeva, Natalia V. Zubkova, and Igor V. Pekov
Eur. J. Mineral., 37, 133–142, https://doi.org/10.5194/ejm-37-133-2025, https://doi.org/10.5194/ejm-37-133-2025, 2025
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The nolanite supergroup has been established and approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association. It contains eight mineral species with the nolanite-type structure. The nolanite supergroup is subdivided into three groups (nolanite, kamiokite, and rinmanite groups). After significant changes, the classification of the nolanite supergroup was approved again.
Tonči Balić-Žunić, Anna Garavelli, Donatella Mitolo, Fabrizio Nestola, Martha Giovanna Pamato, Maja Bar Rasmussen, and Morten Bjerkvig Jølnæs
Eur. J. Mineral., 37, 79–89, https://doi.org/10.5194/ejm-37-79-2025, https://doi.org/10.5194/ejm-37-79-2025, 2025
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Heimaeyite (Na3Al(SO4)3) has been found in fumaroles on Eldfell volcano, which lies on the island of Heimaey, Iceland. Its crystal structure contains Al–sulfate chains and belongs to a known structure type that also comprises K–Nb, K–Ta, Na–V, and Na–Fe representatives. We registered small Fe–Al substitution in heimaeyite, which might indicate a solid solution between Na–Al and Na–Fe compounds. We investigated the specimen with electron microscopy, an electron microprobe, and X-ray diffraction.
Oleg S. Vereshchagin, Sergey N. Britvin, Dmitrii V. Pankin, Marina S. Zelenskaya, Maria G. Krzhizhanovskaya, Maria A. Kuz'mina, Natalia S. Vlasenko, and Olga V. Frank-Kamenetskaya
Eur. J. Mineral., 37, 63–74, https://doi.org/10.5194/ejm-37-63-2025, https://doi.org/10.5194/ejm-37-63-2025, 2025
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Andreybulakhite, ideally Ni(C2O4) · 2H2O, is a new oxalate mineral, which was discovered on the Kola Peninsula, Russia. Andreybulakhite forms segregations of crystals up to 2 × 1 × 1 mm in size disseminated within the fruiting bodies of Lecanora cf. polytropa lichen, whose colonies overgrow the oxidized surfaces of pyrrhotite–pentlandite–chalcopyrite ore. Andreybulakhite is named in honour of Andrey Glebovich Bulakh of Saint Petersburg State University.
Cristian Biagioni, Daniela Mauro, Jiří Sejkora, Zdeněk Dolníček, Andrea Dini, and Radek Škoda
Eur. J. Mineral., 37, 39–52, https://doi.org/10.5194/ejm-37-39-2025, https://doi.org/10.5194/ejm-37-39-2025, 2025
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Dacostaite is a new fluoride–arsenate mineral found in the Sb(Au) deposit of the Cetine di Cotorniano Mine (Tuscany, Italy). It shows a novel crystal structure formed by heteropolyhedral layers and isolated Mg(H2O)6 groups connected by H bonds. The heteropolyhedral layers are similar to those occurring in alunite-supergroup minerals, and this is a further example of the ability of nature to use similar modules in forming the large number of currently known structural arrangements.
Cristian Biagioni, Enrico Mugnaioli, Sofia Lorenzon, Daniela Mauro, Silvia Musetti, Jiří Sejkora, Donato Belmonte, Nicola Demitri, and Zdeněk Dolníček
Eur. J. Mineral., 36, 1011–1022, https://doi.org/10.5194/ejm-36-1011-2024, https://doi.org/10.5194/ejm-36-1011-2024, 2024
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Nannoniite, Al2(OH)5F, is a new mineral species discovered in the Cetine di Cotorniano mine (Tuscany, Italy). Its description was possible through a multi-technique approach, and its crystal structure was solved through three-dimensional electron diffraction, revealing close relations with gibbsite. The partial replacement of (OH) by F induces subtle by detectable structural changes. This study reveals that Al hydroxides could be a source of F in geological environments.
Anthony R. Kampf, Joy Désor, and Chi Ma
Eur. J. Mineral., 36, 873–878, https://doi.org/10.5194/ejm-36-873-2024, https://doi.org/10.5194/ejm-36-873-2024, 2024
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Karlseifertite is a new member of the dussertite group of the alunite supergroup from Tsumeb, Namibia. It is the first member of the dussertite group to be described based upon valency-imposed double site occupancy in the octahedrally coordinated cation site. It is also the first member of the alunite supergroup containing essential Ge.
Marco E. Ciriotti, Uwe Kolitsch, Fernando Cámara, Pietro Vignola, Frédéric Hatert, Erica Bittarello, Roberto Bracco, and Giorgio Maria Bortolozzi
Eur. J. Mineral., 36, 863–872, https://doi.org/10.5194/ejm-36-863-2024, https://doi.org/10.5194/ejm-36-863-2024, 2024
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The article provides the standard description of bonacinaite, Sc3+(AsO4)·2H2O, the first natural scandium arsenate. The new mineral species was found in a few specimens in the dumps of the old Varenche Mine, Valle d'Aosta, Italy, which is therefore the type locality and the only locality in the world. Bonacinaite forms colourless (with faint to distinct violet tints), pseudohexagonal, thick tabular crystals, up to 0.25 mm in size, or as small, faintly violet lath-shaped crystals.
Richard Pažout, Michal Dušek, Jiří Sejkora, Jakub Plášil, Gheorghe Ilinca, and Zdeněk Dolníček
Eur. J. Mineral., 36, 641–656, https://doi.org/10.5194/ejm-36-641-2024, https://doi.org/10.5194/ejm-36-641-2024, 2024
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A new sulfosalt mineral species, lazerckerite, Ag3.7Pb4.6(Sb7.9Bi3.8)Σ11.7S24, has been found, identified, structurally solved, and approved by the IMA. The mineral belongs to the Sb–Bi mixed members of the andorite branch of the lillianite homologous series. The description and characterization of the mineral are presented, and the ways of distinguishing the mineral from other similar members of the group on the basis of chemical results are explained.
Anthony R. Kampf, Gerhard Möhn, Chi Ma, George R. Rossman, Joy Désor, and Yunbin Guan
Eur. J. Mineral., 36, 605–614, https://doi.org/10.5194/ejm-36-605-2024, https://doi.org/10.5194/ejm-36-605-2024, 2024
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Rotherkopfite is the first member of the neptunite group that does not contain lithium in its chemical formula. It was found at Rother Kopf, Eifel volcanic fields, Germany, where in occurs in cavities in a quartz–sanidine fragment embedded in a volcanic rock. Rotherkopfite occurs as dark brownish-red crystals, up to about 0.2 mm across. The intriguing crystal structure is based on two interwoven three-dimensional frameworks.
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
Cristian Biagioni, Ferdinando Bosi, Daniela Mauro, Henrik Skogby, Andrea Dini, and Federica Zaccarini
Eur. J. Mineral., 35, 81–94, https://doi.org/10.5194/ejm-35-81-2023, https://doi.org/10.5194/ejm-35-81-2023, 2023
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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.
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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).
We present the description of new mineral – a Cd-dominant member of the tetrahedrite group,...
