American Mineralogist

Volume 110, Issue no. 10 : October 2025

Letter

MSA Presidential Address

1   MSA at 100 and why optical mineralogy still matters: The optical properties of talc
Mickey E. Gunter

1505 Theoretical studies of thermodynamic and elastic properties of diamond under Earth's mantle conditions
Xu Zheng, Joshua M.R. Muir, Yi Wang, Jiajun Jiang, Qianxi Chen, and Feiwu Zhang

Abstract     Members Full Text Download           Deposit Item
REGULAR ARTICLES

1527 Moxuanxueite, NaCa6Zr(Si2O7)2OF3, a new wöhlerite-group mineral from Gejiu alkaline complex, Yunnan Province, China
Kai Qu, Guochen Dong, Ting Li, Guang Fan, Xiangping Gu, Yufei Wang, and Yanjuan Wang

Abstract     Members Full Text Download           Deposit Item

1538 EBSD mapping of Cu-Fe-sulfides reveals microstructures enriched in critical/precious metals and resolves deformation histories
Samuel A. King, Nigel J. Cook, Cristiana L. Ciobanu, Kathy Ehrig, Yuri Tatiana Campo Rodriguez, Sarah Gilbert, and Animesh Basak

Abstract     Members Full Text Download      

1553 The sulfate-bearing associations of fumarolic environments of Somma-Vesuvius volcano (Italy): A review from historical samples (Royal Mineralogical Museum of Naples)
Annamaria Pellino, Angela Altomare, Fabio Bellatreccia, Piergiulio Cappelletti, G. Diego Gatta, Aurelia Falcicchio, Richard Herrington, Nicola Mondillo, Carmela Petti, Concetta Rispoli, Nicola Rotiroti, Mike Ramsey, Mattia Bonazzi, and Giuseppina Balassone

Abstract     Members Full Text Download           Deposit Item

1574 Snowball quartz in highly fractionated peraluminous granites: An indicator of multiple magma degassing
Daohan Zhang, Kunfeng Qiu, Chang Xu, Yuwei Luan, Yanjun Li, Junhao Wei, and Jun Deng

Abstract     Members Full Text Download           Deposit Item

1597 Oxybarometry of reduced silicate glasses: Using multivariate methods to constrain Cr oxidation states with application to lunar glasses
Molly C. McCanta, M. Darby Dyar, Stephen R. Sutton, Sarah E. Roberts, and Cai R. Ytsma

Abstract     Members Full Text Download           Deposit Item

1614 Nigelcookite, PbFe22+V23+(PO4)3(OH)3, and plumbojohntomaite, PbFe22+Fe23+(PO4)3(OH)3, two new members of the bjarebyite group from the Yushui Cu deposit, South China
Wei Yao, Peng Liu, Guowu Li, Ningyue Sun, Wenqiang Yang, Chao Zhang, and Wenlei Song

Abstract     Members Full Text Download           Deposit Item

1626 Rare occurrence of jarosite-alunite solid solutions with intermediate Al-Fe contents in the Jurassic Aztec Sandstone, Nevada, U.S.A.
Thomas M. McCollom, Sally L. Potter-McIntyre, Chris Donaldson, Andres Reyes, Bruce Moskowitz, and Peter Solheid

Abstract     Members Full Text Download           Deposit Item

1640 Olgafrankite, Ni3Ge, a new mineral as the carrier of siderophile germanium in reduced systems
Oleg S. Vereshchagin, Maya O. Khmelnitskaya, Albina G. Kopylova, Yulia V. Solov'eva, Maria G. Krzhizhanovskaya, Anatoly V. Kasatkin, Liudmila A. Gorelova, Natalia S. Vlasenko, and Sergey N. Britvin

Abstract     Members Full Text Download           Deposit Item

1649 Fuyuanite [Mg7Nb6O18(OH)8], a new hydrous magnesicniobic oxide mineral from the Bayan Obo deposit, China
Hai-Dong She, Hong-Rui Fan, Yun-Xiang Zhan, Xiang-Ping Gu, Xiao-Chun Li, Kui-Feng Yang, and Qi-Wei Wang

Abstract     Members Full Text Download           Deposit Item

1658 Laboratory synthesis, spectroscopic characteristics, and thermal behavior of phoxite
Wenxi Chen, Xiaohui Fu, Zhongchen Wu, Jiang Zhang, Guobin Jin, Lingxi Zhang, and Wang Liu

Abstract     Members Full Text Download           Deposit Item

1667 Sublattice disorder and Fe-Mg substitution in brucite: Implications for the subduction-zone water cycle
Weibin Gui, Jin Liu, Ao Deng, Jun Hu, Penghui Sun, Changzeng Fan, and Fahui Xiong

Abstract     Members Full Text Download           Deposit Item

1677 On the labyrinthine crystal-chemistry of boleite, a Pb-Ag-Cu hydroxyhalide
G. Diego Gatta, Giorgio Guastella, Pierino Malizia, Tommaso Battiston, Marco Merlini, Geoffrey Bromiley, and Oscar Fabelo

Abstract     Members Full Text Download           Deposit Item

Supplements

Welcome to MSA/American Mineralogist Supplemental Materials. These are free to all readers. Discover extra tables, supplemental data, CIFs, appendices, extra figures, and in the future “methods sections”. To find previous issues, go to that Table of Contents and click on the link. We ask that all materials be cited so that credit is given to the authors and American Mineralogist. The pure datasets are not copyrightable. All other material is copyrighted by the authors.

American Mineralogist      Vol. 107, no. 1   January 2022

15    Boron isotope compositions establish the origin of marble from metamorphic complexes: Québec, New York, and Sri Lanka
Corinne Kuebler, Antonio Simonetti, Stefanie S. Simonetti, and Robert F. Martin

Item #AM-22-17811
Online Material
AM-22-17811.zip zipped


31    Celleriite, (Mn22+Al)Al6(Si6O18)(BO3)3(OH)3(OH), a new mineral species of the tourmaline supergroup
Ferdinando Bosi, Federico Pezzotta, Alessandra Altieri, Giovanni B. Andreozzi, Paolo Ballirano, Gioacchino Tempesta, Jan Cempírek, Radek Škoda, Jan Filip, Renata Čopjaková, Milan Novák, Anthony R. Kampf, Emily D. Scribner, Lee A. Groat, and R. James Evans
Item #AM-22-17818
CIF and Online Material
AM-22-17818.zip zipped


54    Incorporation of incompatible trace elements into molybdenite: Layered PbS precipitates within molybdenite
Yiping Yang, Hongping He, Wei Tan, Qi Tao, Junming Yao, Haiyang Xian, Shangying Li, Jiaxin Xi, Jianxi Zhu, and Huifang Xu
Item #AM-22-17609
Online Material
AM-22-17609.zip zipped


74    Thermoelastic properties of zircon: Implications for geothermobarometry
Alix M. Ehlers, Gabriele Zaffiro, Ross J. Angel, Tiziana Boffa-Ballaran, Michael A. Carpenter, Matteo Alvaro, and Nancy L. Ross

Item #AM-22-17731
Online Material
AM-22-17731.zip zipped


82    A Rayleigh model of cesium fractionation in granite-pegmatite systems
David London
Item #AM-22-17855
Online Material
AM-22-17855.zip zipped


92    The atomic arrangement and electronic interactions in vonsenite at 295, 100, and 90 K
Marc Maderazzo, John M. Hughes, M. Darby Dyar, George R. Rossman, Brandon J. Ackley, Elizabeth C. Sklute, Marian V. Lupulescu, and Jeffrey Chiarenzelli
Item #AM-22-17851
CIF and Online Material
AM-22-17851.zip zipped


100    Oxalate formation by Aspergillus niger on minerals of manganese ores
Olga Frank-Kamenetskaya, Marina Zelenskaya, Alina Izatulina, Vladislav Gurzhiy, Aleksei Rusakov, and Dmitry Vlasov
Item #AM-22-17651
CIF and Online Material
AM-22-17651.zip zipped


116    Mesoproterozoic seafloor authigenic glauconite-berthierine: Indicator of enhanced reverse weathering on early Earth
Jianbai Ma, Xiaoying Shi, Maxwell Lechte, Xiqiang Zhou, Zhenfei Wang, Kangjun Huang, Maxim Rudmin, and Dongjie Tang
Item #AM-22-17904
Online Material
AM-22-17904.zip zipped


131    Chemical variability in vyacheslavite, U(PO4)(OH): Crystal-chemical implications for hydrous and hydroxylated U4+, Ca, and REE phosphates
Gwladys Steciuk, Radek Škoda, Veronika Dillingerová, and Jakub Plášil
Item #AM-22-17875
CIF and Online Material
AM-22-17875.zip zipped


138    Bennesherite, Ba2Fe2+Si2O7: A new melilite group mineral from the Hatrurim Basin, Negev Desert, Israel
Arkadiusz Krzątała, Biljana Krüger, Irina Galuskina, Yevgeny Vapnik, and Evgeny Galuskin
Item #AM-22-17747
CIF and Online Material
AM-22-17747.zip zipped


147    Single-crystal elasticity of phase Egg AlSiO3OH and δ-AlOOH by Brillouin spectroscopy
Baoyun Wang, Yanyao Zhang, Suyu Fu, Wei Yan, Eiichi Takahashi, Li Li, Jung-Fu Lin, and Maoshuang Song

Item #AM-22-18056
CIF and Online Material
AM-22-18056.zip zipped

Special Collection: Physics and Chemistry of Earth

1505

Theoretical studies of thermodynamic and elastic properties of diamond under Earth’s mantle conditions
Xu Zheng, Joshua M.R. Muir, Yi Wang, Jiajun Jiang, Qianxi Chen, and Feiwu Zhang

Abstract     Members Full Text Download           Deposit Item

Earth Analogs for Martian Geological Materials and Processes

1516

Natrojarosite formed in the Matanomadh Formation, Kutch, India: A Na analog of jarosite on Mars
Dwijesh Ray, Aditya Das, Subham Sarkar, Satadru Bhattacharya, and Chandrani Nayak

Abstract     Members Full Text Download           Deposit Item

Regular Article

1527

Moxuanxueite, NaCa6Zr(Si2O7)2OF3, a new wöhlerite-group mineral from Gejiu alkaline complex, Yunnan Province, China
Kai Qu, Guochen Dong, Ting Li, Guang Fan, Xiangping Gu, Yufei Wang, and Yanjuan Wang

Open Access     Deposit Item

1538

EBSD mapping of Cu-Fe-sulfides reveals microstructures enriched in critical/precious metals and resolves deformation histories
Samuel A. King, Nigel J. Cook, Cristiana L. Ciobanu, Kathy Ehrig, Yuri Tatiana Campo Rodriguez, Sarah Gilbert, and Animesh Basak

Abstract     Members Full Text Download      

1553

The sulfate-bearing associations of fumarolic environments of Somma-Vesuvius volcano (Italy): A review from historical samples (Royal Mineralogical Museum of Naples)
Annamaria Pellino, Angela Altomare, Fabio Bellatreccia, Piergiulio Cappelletti, G. Diego Gatta, Aurelia Falcicchio, Richard Herrington, Nicola Mondillo, Carmela Petti, Concetta Rispoli, Nicola Rotiroti, Mike Ramsey, Mattia Bonazzi, and Giuseppina Balassone

Abstract     Members Full Text Download           Deposit Item

1574

Snowball quartz in highly fractionated peraluminous granites: An indicator of multiple magma degassing
Daohan Zhang, Kunfeng Qiu, Chang Xu, Yuwei Luan, Yanjun Li, Junhao Wei, and Jun Deng

Abstract     Members Full Text Download           Deposit Item

1597

Oxybarometry of reduced silicate glasses: Using multivariate methods to constrain Cr oxidation states with application to lunar glasses
Molly C. McCanta, M. Darby Dyar, Stephen R. Sutton, Sarah E. Roberts, and Cai R. Ytsma

Abstract     Members Full Text Download           Deposit Item

1614

Nigelcookite, PbFe22+V23+(PO4)3(OH)3, and plumbojohntomaite, PbFe22+Fe23+(PO4)3(OH)3, two new members of the bjarebyite group from the Yushui Cu deposit, South China
Wei Yao, Peng Liu, Guowu Li, Ningyue Sun, Wenqiang Yang, Chao Zhang, and Wenlei Song

Abstract     Members Full Text Download           Deposit Item

1626

Rare occurrence of jarosite-alunite solid solutions with intermediate Al-Fe contents in the Jurassic Aztec Sandstone, Nevada, U.S.A.
Thomas M. McCollom, Sally L. Potter-McIntyre, Chris Donaldson, Andres Reyes, Bruce Moskowitz, and Peter Solheid

Abstract     Members Full Text Download           Deposit Item

1640

Olgafrankite, Ni3Ge, a new mineral as the carrier of siderophile germanium in reduced systems
Oleg S. Vereshchagin, Maya O. Khmelnitskaya, Albina G. Kopylova, Yulia V. Solov’eva, Maria G. Krzhizhanovskaya, Anatoly V. Kasatkin, Liudmila A. Gorelova, Natalia S. Vlasenko, and Sergey N. Britvin

Abstract     Members Full Text Download           Deposit Item

1649

Fuyuanite [Mg7Nb6O18(OH)8], a new hydrous magnesicniobic oxide mineral from the Bayan Obo deposit, China
Hai-Dong She, Hong-Rui Fan, Yun-Xiang Zhan, Xiang-Ping Gu, Xiao-Chun Li, Kui-Feng Yang, and Qi-Wei Wang

Abstract     Members Full Text Download           Deposit Item

1658

Laboratory synthesis, spectroscopic characteristics, and thermal behavior of phoxite
Wenxi Chen, Xiaohui Fu, Zhongchen Wu, Jiang Zhang, Guobin Jin, Lingxi Zhang, and Wang Liu

Abstract     Members Full Text Download           Deposit Item

1667

Sublattice disorder and Fe-Mg substitution in brucite: Implications for the subduction-zone water cycle
Weibin Gui, Jin Liu, Ao Deng, Jun Hu, Penghui Sun, Changzeng Fan, and Fahui Xiong

Abstract     Members Full Text Download           Deposit Item

1677

On the labyrinthine crystal-chemistry of boleite, a Pb-Ag-Cu hydroxyhalide
G. Diego Gatta, Giorgio Guastella, Pierino Malizia, Tommaso Battiston, Marco Merlini, Geoffrey Bromiley, and Oscar Fabelo

Abstract     Members Full Text Download           Deposit Item

BOOK REVIEWS

1686

BOOK REVIEW

Full Text     

DEPOSIT ITEMS

1505

Theoretical studies of thermodynamic and elastic properties of diamond under Earth’s mantle conditions
Xu Zheng, Joshua M.R. Muir, Yi Wang, Jiajun Jiang, Qianxi Chen, and Feiwu Zhang

Item#: AM-25-109574
Online Material
AM-25-109574.zip zipped

1516

Natrojarosite formed in the Matanomadh Formation, Kutch, India: A Na analog of jarosite on Mars
Dwijesh Ray, Aditya Das, Subham Sarkar, Satadru Bhattacharya, and Chandrani Nayak

Item#: AM-25-109360
Online Material
AM-25-109360.zip zipped

1527

Moxuanxueite, NaCa6Zr(Si2O7)2OF3, a new wöhlerite-group mineral from Gejiu alkaline complex, Yunnan Province, China
Kai Qu, Guochen Dong, Ting Li, Guang Fan, Xiangping Gu, Yufei Wang, and Yanjuan Wang

Item#: AM-25-109397
CIF
AM-25-109397.zip zipped

1553

The sulfate-bearing associations of fumarolic environments of Somma-Vesuvius volcano (Italy): A review from historical samples (Royal Mineralogical Museum of Naples)
Annamaria Pellino, Angela Altomare, Fabio Bellatreccia, Piergiulio Cappelletti, G. Diego Gatta, Aurelia Falcicchio, Richard Herrington, Nicola Mondillo, Carmela Petti, Concetta Rispoli, Nicola Rotiroti, Mike Ramsey, Mattia Bonazzi, and Giuseppina Balassone

Item#: AM-25-109666
Online Material and CIF
AM-25-109666.zip zipped

1574

Snowball quartz in highly fractionated peraluminous granites: An indicator of multiple magma degassing
Daohan Zhang, Kunfeng Qiu, Chang Xu, Yuwei Luan, Yanjun Li, Junhao Wei, and Jun Deng

Item#: AM-25-109649
Online Material
AM-25-109649.zip zipped

1597

Oxybarometry of reduced silicate glasses: Using multivariate methods to constrain Cr oxidation states with application to lunar glasses
Molly C. McCanta, M. Darby Dyar, Stephen R. Sutton, Sarah E. Roberts, and Cai R. Ytsma

Item#: AM-25-109602
Online Material
AM-25-109602.zip zipped

1614

Nigelcookite, PbFe22+V23+(PO4)3(OH)3, and plumbojohntomaite, PbFe22+Fe23+(PO4)3(OH)3, two new members of the bjarebyite group from the Yushui Cu deposit, South China
Wei Yao, Peng Liu, Guowu Li, Ningyue Sun, Wenqiang Yang, Chao Zhang, and Wenlei Song

Item#: AM-25-109586
Online Material and CIF
AM-25-109586.zip zipped

1626

Rare occurrence of jarosite-alunite solid solutions with intermediate Al-Fe contents in the Jurassic Aztec Sandstone, Nevada, U.S.A.
Thomas M. McCollom, Sally L. Potter-McIntyre, Chris Donaldson, Andres Reyes, Bruce Moskowitz, and Peter Solheid

Item#: AM-25-109423
Online Material
AM-25-109423.zip zipped

1640

Olgafrankite, Ni3Ge, a new mineral as the carrier of siderophile germanium in reduced systems
Oleg S. Vereshchagin, Maya O. Khmelnitskaya, Albina G. Kopylova, Yulia V. Solov’eva, Maria G. Krzhizhanovskaya, Anatoly V. Kasatkin, Liudmila A. Gorelova, Natalia S. Vlasenko, and Sergey N. Britvin

Item#: AM-25-109714
Online Material and CIF
AM-25-109714.zip zipped

1649

Fuyuanite [Mg7Nb6O18(OH)8], a new hydrous magnesicniobic oxide mineral from the Bayan Obo deposit, China
Hai-Dong She, Hong-Rui Fan, Yun-Xiang Zhan, Xiang-Ping Gu, Xiao-Chun Li, Kui-Feng Yang, and Qi-Wei Wang

Item#: AM-25-109676
CIF
AM-25-109676.zip zipped

1658

Laboratory synthesis, spectroscopic characteristics, and thermal behavior of phoxite
Wenxi Chen, Xiaohui Fu, Zhongchen Wu, Jiang Zhang, Guobin Jin, Lingxi Zhang, and Wang Liu

Item#: AM-25-109463
Online Material
AM-25-109463.zip zipped

1667

Sublattice disorder and Fe-Mg substitution in brucite: Implications for the subduction-zone water cycle
Weibin Gui, Jin Liu, Ao Deng, Jun Hu, Penghui Sun, Changzeng Fan, and Fahui Xiong

Item#: AM-25-109646
Online Material
AM-25-109646.zip zipped

1677

On the labyrinthine crystal-chemistry of boleite, a Pb-Ag-Cu hydroxyhalide
G. Diego Gatta, Giorgio Guastella, Pierino Malizia, Tommaso Battiston, Marco Merlini, Geoffrey Bromiley, and Oscar Fabelo

Item#: AM-25-109721
Online Material and CIF
AM-25-109721.zip zipped
TABLE OF CONTENTS
&
SPECIAL COLLECTIONS

Table of Contents

AmMin submission to acceptance/”first publication” is at a record average of about three to four months. Our acceptance to “final” publication is presently another 13 months on average.

Special Collections

American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.