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Welcome to the American Mineralogist Papers in Press (PIP) page. Recently all Papers in Press have been made open to all readers. These Papers in Press are unedited manuscripts accepted for publication that will undergo copyediting, layout, and review of the proof before being published. Always consult the final, published document as a good practice. Remember to have your institution subscribe to American Mineralogist! Note that individual online subscriptions are via membership in MSA (and members get free online color in their paper) -- check out all the info via the pull-down links above including how to be an author and submit your paper.

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Please cite these papers: Authors (Year) Title. American Mineralogist, in press. DOI.(DOI is live when article is live.)

Title Authors Future DOI PIP
Crystal-chemistry of sulfates from the Apuan Alps (Tuscany, Italy). VI. Tl-bearing alum-(K) and voltaite from the Fornovolasco mining complexCristian Biagioni, Daniela Mauro, Marco Pasero , Elena Bonaccorsi, Giovanni Orazio Lepore, Federica Zaccarini, and Henrik Skogby10.2138/am-2020-7320link
Metamorphic amphiboles in the Ironwood Iron-Formation, Gogebic Iron Range, Wisconsin: Implications for potential resource developmentCarlin J. Green, Robert R. Seal Ii, Nadine M. Piatak , William F. Cannon, Ryan J. Mcaleer, and Julia Nord10.2138/am-2020-7211link
Orthovanadate wakefieldite-(Ce) in symplectites replacing vanadium-bearing omphacite in the ultra-oxidized manganese deposit of Praborna (Aosta Valley, Western Italian Alps)Simone Tumiati, Marco Merlini, Gaston Godard, Michael Hanfland, and Patrizia Fumagalli10.2138/am-2020-7219link
Reaction between Cu-bearing minerals and hydrothermal fluids at 800°C and 200 MPa: constraints from synthetic fluid inclusionsDongmei Qi, Harald Behrens, Roman Botcharnikov, Insa Derrey, Francois Holtz, Chao Zhang, Xiaoyan Li, and Ingo Horn10.2138/am-2020-7114link
An experimental approach to examine fluid-melt interaction and mineralization in rare-metal pegmatitesAlysha G. McNeil, Robert L. Linnen, Roberta L. Flemming, and Mostafa Fayek10.2138/am-2020-7216link
Experimental constraints on the partial melting of sediment-metasomatized lithospheric mantle in subduction zonesYanfei Zhang, Xuran Liang, Chao Wang, Zhenmin Jin, Lüyun Zhu, and Wei Gan10.2138/am-2020-7403link
Experimental Investigation of the Effect of Nickel on the Electrical Resistivity of Fe-Ni and Fe-Ni-S Alloys under PressureAnne Pommier10.2138/am-2020-7301link
New IR spectroscopic data for determination of water abundances in hydrous pantelleritic glassesPaola Stabile, Ernestina Appiah, Marco Bello, Gabriele Giuli, Eleonora Paris, and Michael R. Carroll10.2138/am-2020-7363link
Radiation-induced defects in montebrasite: an electron paramagnetic resonance study of O- hole and Ti3+ electron centersJosé R. Toledo, Raphaela de Oliveira, Lorena N. Dias, Mário L.C. Chaves, Joachim Karfunkel, Ricardo Scholz, Maurício V.B. Pinheiro, and Klaus Krambrock10.2138/am-2020-7168link
The Nature of Zn-Phyllosilicates in the Nonsulfide Mina Grande and Cristal Zinc Deposits (Bongará District, Northern Peru): The Tem-Hrtem and Aem PerspectiveGiuseppina Balassone, Valentina Scognamiglio, Fernando Nieto, Nicola Mondillo, Maria Boni, Piergiulio Cappelletti, and Giuseppe Arfè10.2138/am-2020-7140link
Cr-Zr-Ca armalcolite in lunar rocks is loveringite: Constraints from electron backscatter diffractionAi-Cheng Zhang, Run-Lian Pang, Naoya Sakamoto, and Hisayoshi Yurimoto10.2138/am-2020-7260link
Effects of composition and pressure on electronic states of iron in bridgmaniteSusannah M. Dorfman, Vasily Potapkin, Mingda Lv, Eran Greenberg, Ilya Kupenko, Aleksandr I. Chumakov, Wenli Bi, E. Ercan Alp, Jiachao Liu, Arnaud Magrez, Siân E. Dutton, Robert J. Cava, Catherine A. McCammon, and Philippe Gillet10.2138/am-2020-7309link
High pressure silica phase transitions: Implications for deep mantle dynamics and silica crystallization in the protocorePratik Kr. Das, Chris E. Mohn, John P. Brodholt, and Reidar G. Trønnes10.2138/am-2020-7299link
Ti Diffusion in Feldspar8 D.J. Cherniak and E.B. Watson10.2138/am-2020-7272link
EXCALIBR to EXCELIBR and the Optical Orientation of Minerals: Correcting the Optical Orientation of ClinoamphibolesCody J. Steven and Mickey E. Gunter10.2138/am-2020-7336CCBYNCNDlink
New insights on Br speciation in volcanic glasses and structural controls on halogens degassingMarion Louvel, Anita Cadoux, Richard Brooker, Olivier Proux, and Jean-Louis Hazemann10.2138/am-2020-7273link
Origin of corundum within anorthite megacrysts from anorthositic amphibolites, Granulite Terrane, Southern IndiaShreya Karmakar, Subham Mukherjee, and Upama Dutta10.2138/am-2020-7108link
Partition Coefficients of Trace Elements Between Carbonates and Melt and Suprasolidus Phase Relation of Ca-Mg-Carbonates at 6 GpaMelanie J. Sieber, Franziska Wilke, and Monika Koch-Müller10.2138/am-2020-7098link
A multi-method characterization of natural terrestrial birnessitesFlorence T. Ling, Jeffrey E. Post, Peter J. Heaney, Cara M. Santelli, Eugene S. Ilton, William D. Burgos, and Arthur W. Rose10.2138/am-2020-7303link
A refined zirconium-in-rutile thermometerMatthew J. Kohn10.2138/am-2020-7091link
Deconvolution of the composition of fine-grained pyrite in sedimentary matrix by regression of time resolved LA-ICP-MS dataAleksandr S. Stepanov, Leonid V. Danyushevsky, Ross R. Large, Indrani Mukherjee, and Irina A. Zhukova10.2138/am-2020-7202link
Decoupled water and iron enrichments in the cratonic mantle: a study on peridotite xenoliths from Tok, SE Siberian CratonLuc S. Doucet, Yongjiang Xu (徐永江), Delphine Klaessens, Hejiu Hui (惠鹤九), Dmitri A. Ionov, and Nadine Mattielli10.2138/am-2020-7316link
Stability of fcc phase FeH to 137 GPaChie Kato, Koichiro Umemoto, Kenji Ohta, Shoh Tagawa, Kei Hirose, and Yasuo Ohishi10.2138/am-2020-7153link
Systematics of H2 and H2O evolved from chlorites during oxidative dehydrogenationMałgorzata Lempart, Arkadiusz Derkowski, Tomasz Strączek, Czesław Kapusta10.2138/am-2020-7326link
Thermoelasticity of Tremolite Amphibole: Geophysical ImplicationsYe Peng and Mainak Mookherjee10.2138/am-2020-7189link
In-situ measurements of magmatic volatile elements, F, S and Cl, by electron microprobe, secondary ion mass spectrometry, and heavy ion elastic recoil detection analysisEstelle F. Rose-Koga, Kenneth T. Koga, Jean-Luc Devidal, Nobumichi Shimizu, Marion Le Voyer, Celia Dalou, and Max Döbeli10.2138/am-2020-7221link
Abiotic and biotic processes that drive carboxylation and decarboxylation reactionsCody S. Sheik, H. James Cleaves II, Kristin Johnson-Finn, Donato Giovannelli, Thomas L. Kieft, Dominic Papineau, Matthew O. Schrenk, and Simone Tumiati10.2138/am-2020-7166CCBYNCNDlink
Cassiterite crystallization experiments in alkali carbonate aqueous solutions using a hydrothermal diamond-anvil cellYongchao Liu, Jiankang Li, and I-Ming Chou10.2138/am-2020-7118link
Halogens in amphibole and mica from mantle xenoliths: Implications for the halogen distribution and halogen budget of the metasomatized continental lithosphereJohannes G. Hecker, Michael A.W. Marks, Thomas Wenzel, and Gregor Markl10.2138/am-2020-7174link
REE redistributions during granite weathering: Implications for Ce anomaly as a proxy for paleoredox statesKoji Ichimura, Kenzo Sanematsu, Yoshiaki Kon, Tetsuichi Takagi, and Takashi Murakami10.2138/am-2020-7148link
Talc CPO determined by improved EBSD procedure for sheet silicates: Implications for anisotropy at the slab–mantle interface due to Si-metasomatismTakayoshi Nagaya, Atsushi Okamoto, Ryosuke Oyanagi, Yusuke Seto, Akira Miyake, Masaoki Uno, Jun Muto, and Simon R. Wallis10.2138/am-2020-7006link
Texture and geochemistry of multi-stage hydrothermal scheelite in the Tongshankou porphyry-skarn Cu-Mo (-W) deposit, eastern China: implications for ore-forming process and fluid metasomatismJinsheng Han, Huayong Chen, Wei Hong, Pete Hollings, Gaobin Chua, Le Zhang, and Siquan Sun10.2138/am-2020-7194link
The quintet completed: the partitioning of sulfur between nominally volatile-free minerals and silicate meltsSara Callegaro, Kalotina Geraki, Andrea Marzoli, Angelo de Min, Victoria Maneta, and Don R. Baker10.2138/am-2020-7188link
The relationship of destinezite to the acid sulfate alteration at the El Laco magnetite deposit, ChileFrancisco Velasco, Noelia De la Pinta, Fernando Tornos, Thomas Briezewski, and Aitor Larrañaga10.2138/am-2020-7122link
222Rn and 220 Rn emanations from powdered samples of samarskite as a function of annealing temperatureDariusz Malczewski and Maria Dziurowicz10.2138/am-2020-6988link
A structural study of size-dependent lattice variation: In situ X-ray diffraction of the growth of goethite nanoparticles from 2-line ferrihydritePeter J. Heaney, Matthew J. Oxman, and Si Athena Chen10.2138/am-2020-7217link
An evolutionary system of mineralogy, part I: stellar mineralogy (>13 to 4.6 Ga)Robert M. Hazen and Shaunna M. Morrison10.2138/am-2020-7173link
Changes of antigorite cell parameters close to the antigorite dehydration reaction at subduction zone conditionsTingting Shen, Cong Zhang, Jing Chen, Jörg Hermann, Lifei Zhang, José Alberto Padrón-Navarta, Li Chen, Jun Xu, and Jingsui Yang10.2138/am-2020-7159link
Formation of native arsenic in hydrothermal base metal deposits and related supergene U6+ - enrichment: the Michael vein near Lahr, SW GermanyManuel Scharrer, Katharina Sandritter, Benjamin F. Walter, Udo Neumann, and Gregor Mark10.2138/am-2020-7062link
Kaolinization of 2:1 type clay minerals with different swelling propertiesShangying Li, Hongping He, Qi Tao, Jianxi Zhu, Wei Tan, Shichao Ji, Yiping Yang, and Chaoqun Zhang10.2138/am-2020-7339link
Lingbaoite, AgTe3, a new silver telluride from the Xiaoqinling gold district, central ChinaWei Jian, Jingwen Mao, Bernd Lehmann, Yanhe Li, Huishou Ye, Jianhui Cai, and Zongyan Li10.2138/am-2020-7167link
New insights into the nature of glauconiteAdrián López-Quirós, Antonio Sánchez-Navas, Fernando Nieto, and Carlota Escutia10.2138/am-2020-7341link
Oxygen isotope fractionation between gypsum and its formation waters: implications for past chemistry of the Kawah Ijen volcanic lake, IndonesiaSri Budhi Utami, Vincent J. van Hinsberg, Bassam Ghaleb, and Arnold E. van Dijk10.2138/am-2020-7298link
Petrogenetic insights from chromite in ultramafic cumulates of the Xiarihamu intrusion, northern Tibet Plateau, ChinaXie-Yan Song, Kai-Yuan Wang, Stephen J. Barnes, Jun-Nian Yi, Lie-Meng Chen, and Louise E. Schoneveld10.2138/am-2020-7222link
Polymerization during melting of ortho- and meta-silicates: effects on Q species stability, heats of fusion, and redox state of MORBs.H. Wayne Nesbitt, G. Michael Bancroft, and Grant S. Henderson10.2138/am-2020-6841link
Smamite, Ca2Sb(OH)4[H(AsO4)2]·6H2O, a new mineral and a possible sink for Sb during weathering of fahloreJakub Plášil, Anthony R. Kampf, Nicolas Meisser, Cédric Lheur, Thierry Brunsperger, and Radek Škoda10.2138/am-2020-7133link
Texture constraints on crystal size distribution methodology: An application to the Laki fissure eruptionKim A. Cone, Richard F. Wendlandt, Katharina Pfaff, and Omero F. Orlandini10.2138/am-2020-7007link
The new K, Pb-bearing uranyl-oxide mineral kroupaite: crystal-chemical implications for the structures of uranyl-oxide hydroxy-hydratesJakub Plášil, Anthony R. Kampf, Travis A. Olds, Jiří Sejkora, Radek Škoda, Peter C. Burns, and Jiří Čejka10.2138/am-2020-7311link
Elastic properties of majoritic garnet inclusions in diamonds and the seismic signature of pyroxenites in the Earth’s upper mantleIuliia Koemets, Niccolò Satta, Hauke Marquardt, Ekaterina S. Kiseeva, Alexander Kurnosov, Thomas Stachel, Jeff W. Harris, and Leonid Dubrovinsky10.2138/am-2020-7136CCBYlink
Alteration of magmatic monazite in granitoids from the Ryoke belt (SW Japan): processes and consequencesEtienne Skrzypek, Shuhei Sakata, and Dominik Sorger10.2138/am-2020-7025link
Buoyant Rise of Anorthosite from a Layered Basic Complex Triggered by Rayleigh-Taylor Instability: Insights from a Numerical Modeling StudyAmal Bikash Mukherjee, Subhasish Das, Dhrubajyoti Sen, and Bikramjit Bhattacharya10.2138/am-2020-6985link
Chemically-oscillating reactions in the formation of botryoidal malachiteDominic Papineau10.2138/am-2020-7029link
Hydrogenation Reactions of Carbon on Earth: Linking Methane, Margarine, and LifeShawn E McGlynn, Jennifer B Glass, Kristin Johnson-Finn, Frieder Klein, Sebastian A Sanden, Matthew O Schrenk, Yuichiro Ueno, and Alberto Vitale-Brovarone10.2138/am-2020-6928CCBYNCNDlink
Micro- and Nano-Size Hydrogarnet Clusters and Proton Ordering in Calcium Silicate Garnet: Part I. The Quest to Understand the Nature of “Water” in Garnet ContinuesCharles A. Geiger and George R. Rossman10.2138/am-2020-7256link
Micro- and Nano-Size Hydrogarnet Clusters in Calcium Silicate Garnet: Part II. Mineralogical, Petrological and Geochemical AspectsCharles A. Geiger and George R. Rossman10.2138/am-2020-7257link
Enigmatic diamonds from the Tolbachik volcano, KamchatkaErik M. Galimov, Felix V. Kaminsky, Svetlana N. Shilobreeva, Vyacheslav S. Sevastyanov, Sergei A. Voropaev, Galina K. Khachatryan, Richard Wirth, Anja Schreiber, Vladimir V. Saraykin, Gennady A. Karpov, and Leonid P. Anikin10.2138/am-2020-7119link
Mg diffusion in forsterite from 1250-1600 °CMichael C. Jollands, Irina Zhukova, Hugh St.C O’Neill, and Jörg Hermann10.2138/am-2020-7286link
Pyrite: fool’s gold records starvation of bacteriaDaniel David Gregory and Matthew J. Kohn10.2138/am-2020-7234link
Volcanic SiO2-Cristobalite: A natural product of Chemical Vapor DepositionC. Ian Schipper, William D.A. Rickard, Steven M. Reddy, David W. Saxey, Jonathan M. Castro4, Denis Fougerouse, Zakaria Quadir, Chris Conway, David J. Prior, and Kat Lilly10.2138/am-2020-7236link
XANES Spectroscopy of Sulfides Stable under Reducing ConditionsBrendan A. Anzures, Stephen W. Parman, Ralph E. Milliken, Antonio Lanzirotti, and Matthew Newville10.2138/am-2020-7146link
Elasticity of single-crystal Fe-enriched diopside at high-pressure conditions: Implications for the cause of upper mantle low-velocity zonesDawei Fan, Suyu Fu, Chang Lu, Jingui Xu, Yanyao Zhang, Sergey N. Tkachev, Vitali B. Prakapenka, and Jung-Fu Lin10.2138/am-2020-7075link
Establishing a protocol for the selection of zircon inclusions in garnet for raman thermobarometryNicola Campomenosi, Daniela Rubatto, Joerg Hermann, Boriana Mihailova, Marco Scambelluri, and Matteo Alvaro10.2138/am-2020-7246link
Experimental study of the Pt and Pd antimonides and bismuthinides in Fe-Ni-Cu sulfide systems between 1100 and 700°C and applications to natureHassan M. Helmy and Roman Botcharnikov10.2138/am-2020-7154link
Layers stacking disorder in Mg-Fe chlorites based on powder X-ray diffraction dataKatarzyna Luberda-Durnaś, Marek Szczerba, Małgorzata Lempart, Zuzanna Ciesielska, and Arkadiusz Derkowski10.2138/am-2020-6982link
Pressure dependence of Si diffusion in γ-FeNoriyoshi Tsujino, Andreea Mârza, and Daisuke Yamazaki10.2138/am-2020-7197link
Textural and compositional evolution of iron oxides at Mina Justa (Peru): implications for mushketovite and formation of IOCG depositsXia Hu, Huayong Chen, Georges Beaudoin, and Yu Zhang10.2138/am-2020-7024link
The distribution and abundance of halogens in eclogites: an in situ SIMS perspective of the Raspas Complex (Ecuador)Benjamin M. Urann, Véronique Le Roux, Timm John, Grace M. Beaudoin, and Jaime D. Barnes10.2138/am-2020-6994link
Transjordanite, Ni2P, a new terrestrial and meteoritic phosphide, and natural solid solutions barringerite-transjordanite (hexagonal Fe2P–Ni2P)Sergey N. Britvin, Michail N. Murashko, Ye. Vapnik, Yury S. Polekhovsky, Sergey V. Krivovichev, Maria G. Krzhizhanovskaya, Oleg S. Vereshchagin, Vladimir V. Shilovskikh, and Natalia S. Vlasenko10.2138/am-2020-7275link
Heavy halogen geochemistry of martian shergottite meteorites and implications for the halogen composition of the depleted shergottite mantle sourcePatricia L. Clay, Katherine H. Joy, Brian O’Driscoll, Henner Busemann, Lorraine Ruziè-Hamilton, Ray Burgess, Jonathan Fellowes, Bastian Joachim-Mrosko, John Pernet-Fisher, Stanislav Strekopytov, and Christopher J. Ballentine10.2138/am-2020-7237link
Negevite, the pyrite-type NiP2, a new terrestrial phosphideSergey N. Britvin, Michail N. Murashko, Ye. Vapnik, Yury S. Polekhovsky, Sergey V. Krivovichev, Oleg S. Vereshchagin, Vladimir V. Shilovskikh, and Maria G. Krzhizhanovskaya10.2138/am-2020-7192link
Equations of state, phase relations, and oxygen fugacity of the Ru-RuO2 buffer at high pressures and temperaturesKatherine Armstrong, Nicki C. Siersch, Tiziana Boffa-Ballaran, Daniel J. Frost, Tony Yu, and Yanbin Wang10.2138/am-2020-7060link
Seismic detectability of carbonates in the deep Earth: a Nuclear Inelastic Scattering studyStella Chariton, Catherine McCammon, Denis M. Vasiukov, Michal Stekiel, Anastasia Kantor, Valerio Cerantola, Ilya Kupenko, Timofey Fedotenko, Egor Koemets, Michael Hanfland, Alexandr I. Chumakov, and Leonid Dubrovinsky10.2138/am-2020-6901link
Zircon and Apatite Geochemical Constraints on the Formation of the Huojihe Porphyry Mo Deposit in the Lesser Xing’an Range, NE ChinaKai Xing, Qihai Shu, David R. Lentz, and Fangyue Wang10.2138/am-2020-7226link
Extraterrestrial, shock-formed, cage-like nanostructured carbonaceous materialsPéter Németh and Laurence A.J. Garvie10.2138/am-2020-7305link
Experimental quantification of the Fe-valence state on amosite-asbestos boundaries using acSTEM Dual-Electron Energy-Loss SpectroscopyRuggero Vigliaturo, Simone Pollastri, Reto Gieré, Alessandro F. Gualtieri, and Goran Dražić10.2138/am-2019-7218link
Formation of saponite by hydrothermal alteration of metal oxides: implication for the rarity of hydrotalciteQi Tao, Qingjin Zeng, Manyou Chen, Hongping He, and Sridhar Komarneni10.2138/am-2019-7043link