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Welcome to the American Mineralogist preprint page. Recently all preprints have been made open to all readers. These preprints are unedited manuscritps 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 Link
Charleshatchettite, CaNb4O10(OH)2·8H2O, a new mineral from Mont Saint-Hilaire, Québec, Canada: Description, Crystal-Structure Determination and OriginMonika M.M. Haring and Andrew M. McDonald10.2138/am-2017-5926preprint
Do Fe-Ti-oxide magmas exist? Probably not!Donald H. Lindsley and Nathan Epler10.2138/am-2017-6091preprint
Ferruginous seawater facilitates the transformation of glauconite to chamosite: an example from the Mesoproterozoic Xiamaling Formation of North ChinaDongjie Tang, Xiaoying Shi, Ganqing Jiang, Xiqiang Zhou, and Qing Shi10.2138/am-2017-6136preprint
Parameterized lattice strain models for REE partitioning between amphibole and silicate meltKei Shimizu, Yan Liang, Chenguang Sun, Colin R. M. Jackson, and Alberto E. Saal10.2138/am-2017-6110preprint
Previously unknown mineral-nanomineral relationships with important environmental consequences: The case of chromium release from dissolving silicate mineralsMichael Schindler, Debora Berti, and Michael F. Hochella Jr.10.2138/am-2017-6170preprint
The fate of ammonium in phengite during high temperature processesYan Yang, Vincent Busigny, Zhongping Wang, and Qunke Xia10.2138/am-2017-6094preprint
Unusual replacement of Fe-Ti oxides by rutile during retrogression in amphibolite-hosted veins (Dabie UHP terrane): A mineralogical record of fluid-induced oxidation processes in exhumed UHP slabsShun Guo, Pan Tang, Bin Su, Yi Chen, Kai Ye, Lingmin Zhang, Yijie Gao, Jingbo Liu, and Yueheng Yang10.2138/am-2017-6120preprint
A new hydrothermal moissanite cell apparatus for optical in-situ observations at high pressure and high temperature, with applications to bubble nucleation in silicate meltsMatteo Masotta and Hans Keppler10.2138/am-2017-6093preprint
Calcium (Ti, Zr) hexaorthophosphate bioceramics for electrically stimulated biomedical implant devices. A position paperRobert B. Heimann10.2138/am-2017-6165preprint
Making a fine-scale ruler for oxide inclusionsDongzhou Zhang10.2138/am-2017-6223preprint
Model for the Origin, Ascent, and Eruption of Lunar Picritic MagmasMalcolm J. Rutherford, James W. Head, Alberto E. Saal, Erik Hauri, and Lionel Wilson10.2138/am-2017-5994CCBYNCNDpreprint
Orientation of exsolution lamellae in mantle xenolith pyroxenes and implications for calculating exsolution pressuresShan-Rong Zhao, Ge-Ge Zhang, Hui Sun, Roger Mason, and Xu He10.2138/am-2017-6009preprint
Protoenstatite: A new mineral in Oregon sunstones with “watermelon” colorsHuifang Xu, Tina R. Hill, Hiromi Konishi, and Gabriela Farfan10.2138/am-2017-6186preprint
Single crystal X-ray structure analysis of the high-pressure Mg2Cr2O5 phase with modified ludwigite-type structureTakayuki Ishii, Noriyoshi Tsujino, Hidekazu Arii, Kiyoshi Fujino, Nobuyoshi Miyajima, Hiroshi Kojitani, Takehiro Kunimoto, and Masaki Akaogi10.2138/am-2017-6050preprint
Spin state and electronic environment of iron in basaltic glass in the lower mantleFumiya Maeda, Seiji Kamada, Eiji Ohtani, Naohisa Hirao, Takaya Mitsui, Ryo Masuda, Masaaki Miyahara, and Catherine McCammon10.2138/am-2017-6035preprint
Tracking the evolution of late Mesozoic arc-related magmatic systems in Hong Kong using in-situ U-Pb dating and trace element analyses in zirconsDenise L.K. Tang, Colin J.N. Wilson, Roderick J. Sewell, Diane Seward, Lung S. Chan, Trevor R. Ireland, and Joseph L. Wooden10.2138/am-2017-6071preprint
Mengxianminite, ideally Ca2Sn2Mg3Al8[(BO3)(BeO4)O6]2, a new borate mineral from Xianghualing skarn, Hunan Province, ChinaCan Rao, Frédéric Hatert, Fabrice Dal Bo, Rucheng Wang, Xiangping Gu, and Maxime Baijot10.2138/am-2017-5919preprint
The System Fayalite-Albite-Anorthite and the Syenite ProblemS. A. Morse and J. B. Brady10.2138/am-2017-5762preprint
Thermodynamic characterization of synthetic autuniteEwa A. Dzik, Haylie L. Lobeck, Lei Zhang, and Peter C. Burns10.2138/am-2017-6109preprint
A Raman calibration for the quantification of SO42- groups dissolved in silicate glasses: Application to natural melt inclusions.Yann Morizet, Emanuela Gennaro, Sébastien Jego, Zoltan Zajacz, Giada Iacono-Marziano, Michel Pichavant, Ida Di Carlo, Clément Ferraina, and Priscille Lesne10.2138/am-2017-6100preprint
Continuous mush disaggregation during the long-lasting Laki fissure eruption, IcelandDavid A. Neave, Iris Buisman, and John Maclennan10.2138/am-2017-6015CCBYpreprint
EosFit-Pinc: A Simple Gui For Host-Inclusion Elastic ThermobarometryRoss J. Angel, Mattia L. Mazzucchelli, Matteo Alvaro, and Fabrizio Nestola10.2138/am-2017-6190preprint
Organic matter and formation of buddingtonite - an example of organic-igneous interaction from the Paleoproterozoic Volyn pegmatite, UkraineGerhard Franz, Vladimir Khomenko, Aleksei Vishnyevskyy, Richard Wirth, Ulrich Struck, Jörg Nissen, Ulrich Gernert, and Alexander Rocholl10.2138/am-2017-6055preprint
Substitution of sulfate in apatiteLinh K. Tran, Kathleen R. Stepien, Melissa M. Bollmeyer, and Claude H. Yoder10.2138/am-2017-6088preprint
The crystal structure of turneaureite, Ca5(AsO4)3Cl, the arsenate analogue of chlorapatite, and its relationships with the arsenate apatites johnbaumite and svabiteCristian Biagioni, Ferdinando Bosi, Ulf Hålenius, and Marco Pasero10.2138/am-2017-6041preprint
Cu-Mo partitioning between felsic melts and saline-aqueous fluids as a function of XNaCleq, ƒO2 and ƒS2Brian C. Tattitch and Jon D. Blundy10.2138/am-2017-5998preprint
Experimental and thermodynamic investigations on the stability of Mg14Si5O24 anhydrous phase B with relevance to Mg2SiO4 forsterite, wadsleyite and ringwooditeHiroshi Kojitani, Saki Terata, Maki Ohsawa, Daisuke Mori, Yoshiyuki Inaguma, and Masaki Akaogi10.2138/am-2017-6115preprint
Kiglapait Mineralogy V: Feldspars in a Hot, Dry MagmaS. A. Morse10.2138/am-2017-6098preprint
Phase relations of Fe-Mg spinels including new high-pressure post-spinel phases and implications for natural samplesLaura Uenver-Thiele, Alan B. Woodland, Tiziana Boffa Ballaran, Nobuyoshi Miyajima, and Dan J. Frost10.2138/am-2017-6119preprint
A nano-mineralogical study of samples from the Matoush Uranium ore deposit: Further evidence for the mobilization and agglomeration of uraninite nanoparticlesMichael Schindler, Aaron J. Lussier, Jacob Bellrose, Sergei Rouvimov, Peter C. Burns, and T. Kurt Kyser10.2138/am-2017-5984preprint
Can we use pyroxene weathering textures to interpret aqueous alteration conditions? Yes and NoCharity M. Phillips-Lander, Carey Legett IV, Andrew S. Elwood Madden, and Megan E. Elwood Madden10.2138/am-2017-6155preprint
Element mobility during regional metamorphism in crustal and subduction zone environments with a focus on the rare earth elements (REE)Jay J. Ague10.2138/am-2017-6130preprint
Dolomite-IV: candidate structure for a carbonate in the Earth’s lower mantleMarco Merlini, Valerio Cerantola, and G. Diego10.2138/am-2017-6161preprint
Nanoscale disequilibrium phases produced by H2S sulfidation of Fe metal: an analog for solar nebular formation of pyrrhotiteZack Gainsforth, Dante S. Lauretta, Nobumichi Tamura, Andrew J. Westphal, Christine E. Jilly-Rehak, and Anna L. Butterworth10.2138/am-2017-5848preprint
OH-defects in quartz as monitor for igneous, metamorphic and sedimentary processesRoland Stalder, Alexander Potrafke, Kjell Billström, Henrik Skogby, Guido Meinhold, Christian Gögele, and Thomas Berberich10.2138/am-2017-6107preprint
Radiation effects in radioactive galena from burning heaps after coal mining from the Lower Silesian basin (Czech Republic)Michal Čurda, Viktor Goliáš, Mariana Klementová, Ladislav Strnad, Zdeněk Matěj, and Radek Škoda10.2138/am-2017-6036preprint
Crystal structure of richetite revisited: crystallographic evidence for the presence of pentavalent uraniumJakub Plášil10.2138/am-2017-6092preprint
Effect of alkalis on the reaction of clinopyroxene with Mg-carbonate at 6 GPa: Implications for partial melting of carbonated lherzoliteAnton Shatskiy, Ivan V. Podborodnikov, Anton V. Arefiev, Konstantin D. Litasov, Artem D. Chanyshev, Igor S. Sharygin, Nikolai S. Karmanov, and Eiji Ohtani10.2138/am-2017-6048preprint
Phase relations and formation of K-bearing Al-10 Å phase in the MORB + H2O system: Implications for the H2O- and K-cycle in subduction zoneRenbiao Tao, Lifei Zhang, Xi Liu, Thomas Bader, and Yingwei Fei10.2138/am-2017-6025preprint
Refractive Indices of Minerals and Synthetic CompoundsRuth C. Shannon, Barbara Lafuente, Robert D. Shannon, Robert T. Downs, and Reinhard X. Fischer10.2138/am-2017-6144preprint
Single crystal synthesis of δ-(Al,Fe)OOHTakaaki Kawazoe, Itaru Ohira, Takayuki Ishii, Tiziana Boffa Ballaran, Catherine McCammon, Akio Suzuki, and Eiji Ohtani10.2138/am-2017-6153preprint
Subsolidus hydrogen partitioning between nominally anhydrous minerals in garnet-bearing peridotiteSylvie Demouchy, Svyatoslav Shcheka, Carole M.M. Denis, and Catherine Thoraval10.2138/am-2017-6089preprint
Synthesis and crystal structure of LiNbO3-type Mg3Al2Si3O12: A possible indicator of shock conditions of meteoritesTakayuki Ishii, Ryosuke Sinmyo, Tetsuya Komabayashi, Tiziana Boffa Ballaran, Takaaki Kawazoe, Nobuyoshi Miyajima, Kei Hirose, and Tomoo Katsura10.2138/am-2017-6027preprint
Trace element inventory of meteoritic Ca-phosphatesDustin Ward, Addi Bischoff, Julia Roszjar, Jasper Berndt, and Martin J. Whitehouse10.2138/am-2017-6056preprint
Nitrides and carbonitrides from the lowermost mantle and their importance in the search for Earth’s ‘lost’ nitrogenFelix Kaminsky and Richard Wirth10.2138/am-2017-6101preprint
Physicochemical controls on bismuth mineralization, Moutoulas, Serifos Island, Cyclades, GreeceMichalis Fitros, Stylianos F. Tombros, Anthony E. Williams-Jones, Basilios Tsikouras, Eleni Koutsopoulou, and Konstantin Hatzipanagiotou10.2138/am-2017-6125preprint
Analysis of erionites from volcaniclastic sedimentary rocks and possible implications for toxicological researchMartin Harper, Alan Dozier, Julie Chouinard, and Robyn Ray10.2138/am-2017-6069preprint
Geochemistry of the Cretaceous Kaskanak Batholith and Genesis of the Pebble Porphyry Cu-Au-Mo deposit, Southwest AlaskaNansen H. Olson, John H. Dilles, Adam J.R. Kent, and James R. Lang10.2138/am-2017-6053preprint
The role of modifier cations in network cation coordination increases with pressure in aluminosilicate glasses and melts from 1 to 3 GPaSaurav Bista and Jonathan Stebbins10.2138/am-2017-6081preprint
An ab-initio study of the energetics and geometry of sulfide, sulfite and sulfate incorporation into apatite: The thermodynamic basis for using this system as an oxybarometerYoungJae Kim, Brian Konecke, Adrian Fiege, Adam Simon, and Udo Becker10.2138/am-2017-6044preprint
Reconstructive phase transitions induced by temperature in gmelinite-Na zeoliteAlberto Alberti, Giuseppe Cruciani, and Annalisa Martucci10.2138/am-2017-5910preprint
Ilmenite breakdown and rutile - titanite stability in metagranitoids: natural observations and experimental resultsSamuel Angiboust and Daniel Harlov10.2138/am-2017-6064preprint
Mn- Fe systematics in major planetary body reservoirs in the Solar System and the 3 positioning of the Angrite Parent body: A crystal chemical perspectiveJames J. Papike, Paul V. Burger, Aaron S. Bell, and Charles K. Shearer10.2138/am-2017-6112preprint
Qantitative electron backscatter diffraction data (EBSD) analyses using the dictionary indexing (DI) approach: overcoming indexing difficulties on geological materialsKatharina Marquardt, Marc De Graef, Saransh Singh, Hauke Marquardt, Anja Rosenthal, and Sanae Koizuimi10.2138/am-2017-6062preprint
Single-Crystal Equations of State of Magnesiowüstite at High PressuresGregory J. Finkelstein, Jennifer M. Jackson, Wolfgang Sturhahn, Dongzhou Zhang, E. Ercan Alp, and Thomas S. Toellner10.2138/am-2017-5966preprint
Smoking gun for thallium geochemistry in volcanic arcs: nataljamalikite, TlI, a new thallium mineral from an active fumarole at Avacha Volcano, Kamchatka Peninsula, RussiaVictor Okrugin, Michael Favero, Amelia Liu, Barbara Etschmann, Ekaterina Plutachina, Stuart Mills, Andrew G. Tomkins, Mariaya Lukasheva, Vladimir Kozlov, Svetlana Moskaleva, Mikhail Chubarov, and Joël Brugger10.2138/am-2017-6057preprint
Geochemistry and mineralogy of a saprolite developed on Columbia River Basalt: Secondary clay formation, element leaching, and mass balance during weatheringLeslie L. Baker and Owen Kelly Neill10.2138/am-2017-5964preprint
Network analysis of mineralogical systemsShaunna M. Morrison, Chao Liu, Ahmed Eleish, Anirudh Prabhu, Congrui Li, Jolyon Ralph, Robert T. Downs, Joshua J. Golden, Peter Fox, Daniel R. Hummer, Michael B. Meyer, and Robert M. Hazen10.2138/am-2017-6104CCBYNCNDpreprint
The relationship between color change and pleochroism in a chromium-doped synthetic chrysoberyl (var alexandrite): Spectroscopic analysis and colorimetric parametersZiyin Sun, Aaron C. Palke, Jonathan Muyal, and Robison McMurtry10.2138/am-2017-6011preprint
A finite strain approach to thermal expansivity's pressure dependenceGeorge Helffrich10.2138/am-2017-6007preprint
How many boron minerals occur in Earth’s upper crust?Edward S. Grew, Grethe Hystad, Robert M. Hazen, Sergey V. Krivovichev, and Liudmila A. Gorelova10.2138/am-2017-5897preprint
Accounting for the species-dependence of the 3500 cm-1 H2Ot infrared molar absorptivity coefficient: implications for hydrated volcanic glassesIona M. McIntosh, Alexander R.L. Nichols, Kenichiro Tani, and Edward W. Llewellin10.2138/am-2017-5952CCBYpreprint
Unraveling the presence of multiple plagioclase populations and identification of representative two dimensional sections using a statistical and numerical approachLilu Cheng, Fidel Costa, and Roberto Carniel10.2138/am-2017-5929CCBYNCNDpreprint
Na-P Concentrations in High-Pressure Garnets: A Potentially Rich, But Risky P-T RepositoryWilliam Glassley10.2138/am-2016-5845preprint