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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
Cathodoluminescence images and trace element compositions of fluorapatite from the Hongge layered intrusion in SW China: a record of prolonged crystallization and overprinted fluid metasomatismChang-Ming Xing and Christina Yan Wang10.2138/am-2017-6028preprint
Mineralogical and compositional features of rock fulgurites: a record of lightning effects on graniteChiara Elmi, Jiangzhi Chen, David Goldsby, and Reto Gieré10.2138/am-2017-5971preprint
Revisiting the Nontronite Mössbauer SpectraFabien Baron, Sabine Petit, Martin Pentrák, Alain Decarreau, and Joseph W. Stucki10.2138/am-2017-6039preprint
Cabvinite, Th2F7(OH)·3H2O, the first natural actinide halidePaolo Orlandi, Cristian Biagioni, and Federica Zaccarini10.2138/am-2017-6013preprint
Diagenetic F-Rich Ferroan Calcite and Zircon in the Offshore Scotian Basin, Eastern Canada: Significance for Understanding Thermal Evolution of the BasinGeorgia Pe-Piper, Christopher Sangster, and Yuanyuan Zhang10.2138/am-2017-5957preprint
Sapphire, a not so simple gemstoneF. Lin Sutherland10.2138/am-2017-6105preprint
Formation of basic lead phases during fire-setting and other natural and man-made processesMaximilian F. Keim, Bernd Gassmann, and Gregor Markl10.2138/am-2017-5931preprint
An Article to American Mineralogist Dehydration studies of natrolites with monovalent extra framework cationsYongmoon Lee, Docheon Ahn, Thomas Vogt, and Yongjae Lee10.2138/am-2017-5902preprint
Hydrothermal alteration of monazite-(Ce) and chevkinite-(Ce) from the Sin Quyen Fe-Cu-LREE-Au deposit, northwestern VietnamXiao-Chun Lia and Mei-Fu Zhoua10.2138/am-2017-5970preprint
Magma mush chemistry at subduction zones, revealed by new melt major element inversion from calcic amphibolesJing Zhang, Madeleine C.S. Humphreys, George F. Cooper, Jon P. Davidson, and Colin G. Macpherson10.2138/am-2017-5928preprint
Variations of Radon emanation coefficients as a function of physical and mineralogical properties of a suite of naturally-occurring mineralsKatherine Krupp, Mark Baskaran, and Sarah J. Brownlee10.2138/am-2017-6017preprint
Carbocernaite from the Bear Lodge carbonatite, Wyoming: revised structure, zoning and rare-earth fractionation on a microscaleAnton R. Chakhmouradian, Mark A. Cooper, Ekaterina P. Reguir, and Meghan A. Moore10.2138/am-2017-6046preprint
NanoSIMS study of seismically deformed zircon: Evidence of Y, Yb, Ce and P re-distribution and resetting of radiogenic PbElizaveta Kovaleva and Urs Klötzli10.2138/am-2017-5975preprint
Study on structure variations of incommensurately modulated labradorite feldspars with different cooling historiesShiyun Jin and Huifang Xu10.2138/am-2017-6003preprint
Cu and Fe diffusion in rhyolitic melts during chalcocite dissolution: Implications for porphyry ore deposits and tektitesPeng Ni, Youxue Zhang, Adam Simon, and Joel Gagnon10.2138/am-2017-5885preprint
Evidence for post-depositional diffusional loss of hydrogen in quartz phenocryst fragments within ignimbritesTamás Biró, István János Kovács, Dávid Karátson, Roland Stalder, Edit Király, György Falus, Tamás Fancsik, and Judit K. Sándorné10.2138/am-2017-5861preprint
Field-based accounting of CO2 sequestration in ultramafic mine wastes using portable X-ray diffractionConnor C. Turvey, Siobhan A. Wilson, Jessica L. Hamilton, and Gordon Southam10.2138/am-2017-5953preprint
Majorite–olivine–high-Ca pyroxene assemblage in the shock-melt veins of Pervomaisky L6 chondriteIvan S. Bazhan, Konstantin D. Litasov, Eiji Ohtani, and Shin Ozawa10.2138/am-2017-5892preprint
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
High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruptionKathrin Laeger, Maurizio Petrelli, Daniele Andronico, Valeria Misiti, Piergiorgio Scarlato, Corrado Cimarelli, Jacopo Taddeucci, Elisabetta del Bello, and Diego Perugini10.2138/am-2017-5860preprint
Reaction pathways and textural aspects of the replacement of anhydrite by calcite at 25 ºCTeresa Roncal-Herrero, José Manuel Astilleros, Pieter Bots, Juan Diego Rodríguez-Blanco, Manuel Prieto, Liane G. Benning, and Lurdes Fernández-Díaz10.2138/am-2017-5963preprint
Shock-induced P-T conditions and formation mechanism of akimotoite-pyroxene glass assemblages in the Grove Mountains (GRV) 052082 (L6) meteoriteLu Feng, Masaaki Miyahara, Toshiro Nagase, Eiji Ohtani, Sen Hu, Ahmed El Goresy, and Yangting Lin10.2138/am-2017-5905preprint
The spin state of Fe3+ in lower mantle bridgmaniteRyosuke Sinmyo, Catherine McCammon, and Leonid Dubrovinsky10.2138/am-2017-5917preprint
Uranium bearing opals: Products of U-mobilization, diffusion and transformation processesMichael Schindler, Mostafa Fayek, Britanney Courchesne, Kurt Kyser, and Frank C. Hawthorne10.2138/am-2017-5700preprint
Constraints on aluminum and scandium substitution mechanisms in forsterite, periclase, and larnite: High resolution NMRRyan J. McCarty and Jonathan F. Stebbins10.2138/am-2017-5976preprint
Crystal structure of abelsonite, the only known crystalline geoporphyrinDaniel R. Hummer, Bruce C. Noll, Robert M. Hazen, and Robert T. Downs10.2138/am-2017-5927preprint
Multi-Stage formation of REE Minerals in the Palabora Carbonatite Complex, South AfricaR. Johannes Giebel, Christoph D.K. Gauert, Michael A.W. Marks, Gelu Costin, and Gregor Markl10.2138/am-2017-6004preprint
Phillipsite and Al-tobermorite mineral cements produced through low temperature water-rock reactions in Roman marine concreteMarie D. Jackson, Sean R. Mulcahy, Heng Chen, Yao Li, Qinfei Li, Piergiulio Cappelletti, and Hans-Rudolf Wenk10.2138/am-2017-5993CCBYpreprint
Quantifying and Correcting the Effects of Anisotropy in XANES Measurements of Chromium Valence in Olivine: Implications for a New Olivine OxybarometerAaron S. Bell, Charles Shearer, Paul Burger, Minghua Ren, Matthew Newville, and Antonio Lanzirotti10.2138/am-2017-5911preprint
The origin of needle-like rutile inclusions in natural gem corundum: a combined EPMA, LA-ICP-MS, and nanoSIMS investigationAaron C. Palke and Christopher M. Breeding10.2138/am-2017-5965preprint
Diamonds from the lower mantle?A.R. Thomson10.2138/am-2017-6061preprint
Thermodynamic investigation of uranyl vanadate minerals: implications for structural stabilityTyler L. Spano, Ewa A. Dzik, Melika Sharifironizi, Megan K. Dustin, Madison Turner, and Peter C. Burns10.2138/am-2017-5894preprint
Rowleyite, [Na(NH4,K)9Cl4][V5+,4+ 2(P,As)O8]6·n[H2O,Na,NH4,K,Cl], a new mineral with a microporous framework struAnthony R. Kampf, Mark A. Cooper, Barbara P. Nash, Thure E. Cerling, Joe Marty, Daniel R. Hummer, Aaron J. Celestian, Timothy P. Rose, and Thomas J. Trebisky10.2138/am-2017-5977preprint
Sperrylite saturation in magmatic sulfide melts: Implications for formation of PGE-bearing arsenides and sulfarsenidesLiping Bai, Sarah-Jane Barnes, and Don R. Baker10.2138/am-2017-5631preprint
Textures and high–field strength elements in hydrothermal magnetite from a skarn system: Implications for coupled dissolution–reprecipitation reactionsShuo Yin, Changqian Ma, and Paul T. Robinson10.2138/am-2017-5913preprint
Using mineral equilibria to estimate H2O activities in peridotites from the Western Gneiss Region of NorwayPatricia Kang, William M Lamb, and Martyn Drury10.2138/am-2017-5915preprint
Diamond, Moissanite and other unusual minerals in podiform chromitites from the Pozanti-Karsanti ophiolite, southern Turkey: implications for the deep mantle origin and ultra-reducing conditions in podiform chromititeDongyang Lian, Jingsui Yang, Yildirim Dilek, Weiwei Wu, Zhongming Zhang, Fahui Xiong, Fei Liu, and Wengda Zhou10.2138/am-2017-5850preprint
Dry annealing of metamict zircon: a differential scanning calorimetry studyRobert T. Pidgeon, Peter G. Chapman, Martin Danišík, and Alexander A. Nemchin10.2138/am-2017-5901preprint
Tightly bound water in smectitesArtur Kuligiewicz and Arkadiusz Derkowski10.2138/am-2017-5918preprint
Transformation of halloysite and kaolinite into beidellite under hydrothermal conditionHongping He, Shichao Ji, Qi Tao, Jianxi Zhu, Tianhu Chen, Xiaoliang Liang, Zhaohui Li, and Hailiang Dong10.2138/am-2017-5935preprint
Water transport by subduction: clues from garnet of Erzgebirge UHP eclogiteEsther Schmädicke and Jürgen Gose10.2138/am-2017-5920preprint
A Review and Update of Mantle Thermobarometry for Primitive Arc MagmasChristy B. Till10.2138/am-2017-5783preprint
Spin orientation in solid solution hematite-ilmeniteErik Brok, Cathrine Frandsen, Kim Lefmann, Suzanne McEnroe, Peter Robinson, Benjamin P. Burton, Thomas C. Hansen, and Richard Harrison10.2138/am-2017-5792CCBYpreprint
Using mineral geochemistry to decipher slab, mantle, and crustal input in the generation of high-Mg andesites and basaltic andesites from the northern Cascade ArcMay Sas, Susan M. DeBari, Michael A. Clynne, and Brian G. Rusk10.2138/am-2017-5756preprint
Visible to Near-Infrared MSL/Mastcam Multispectral Imaging: Initial Results from Select High-Interest Science Targets within Gale Crater, MarsDanika F. Wellington, James F. Bell III, Jeffrey R. Johnson, Kjartan M. Kinch, Melissa S. Rice, Austin Godber, Bethany L. Ehlmann, Abigail A. Fraeman, Craig Hardgrove, and the MSL Science Team10.2138/am-2017-5760CCBYpreprint
Hollisterite (Al3Fe), kryachkoite (Al,Cu)6(Fe,Cu), and stolperite (AlCu): Three new minerals from the Khatyrka CV3 carbonaceous chondriteChi Ma, Chaney Lin, Luca Bindi, and Paul J. Steinhardt10.2138/am-2017-5991preprint
Early warning signs for mining accidents: detecting crackling noiseUlrich Bismayer10.2138/am-2017-5969preprint
Na-P Concentrations in High-Pressure Garnets: A Potentially Rich, But Risky P-T RepositoryWilliam Glassley10.2138/am-2016-5845preprint
Alunite on MarsKathleen C. Benison10.2138/am-2016-5802preprint
New evidence for lunar basalt metasomatism by underlying regolithJohn F. Pernet-Fisher10.2138/am-2016-5790preprint
Discovery of Alunite in Cross Crater, Terra Sirenum, Mars: Evidence for Acidic, Sulfurous WatersBethany L. Ehlmann, Gregg A. Swayze, Ralph E. Milliken, John F. Mustard, Roger N. Clark, Scott L. Murchie, George N. Breit, James J. Wray, Brigitte Gondet, Francois Poulet, John Carter, Wendy M. Calvin, William M. Benzel, and Kimberly D. Seelos10.2138/am-2016-5574preprint
Accurate predictions of iron redox state in silicate glasses: A multivariate approach using x-ray absorption spectroscopyM. Darby Dyar, Molly Mccanta, Elly Breves, Cj Carey, and Antonio Lanzirotti10.2138/am-2016-5555preprint
In-situ infrared spectroscopic studies of hydroxyl in amphiboles at high pressureElizabeth C. Thompson, Andrew J. Campbell, and Zhenxian Liu10.2138/am-2016-5465preprint
Reflectance Spectroscopy of Chromium-bearing Spinel with Application to Recent Orbital Data from the MoonK.B. Williams, C.R.M. Jackson, L.C. Cheek, K.L. Donaldson Hanna, S.W. Parman, C.M. Pieters, M.D. Dyar, and T.C. Prissel10.2138/am-2016-5535preprint
Temperature dependences of the hyperfine parameters of Fe2+ in FeTiO3 as determined by 57Fe-Mössbauer spectroscopyAntoine Van Alboom and Eddy De Grave10.2138/am-2016-5262preprint
Recognizing sulfate and phosphate complexes chemisorbed onto nanophase weathering products on Mars using in-situ and remote observationsElizabeth B. Rampe, Richard V. Morris, P. Douglas Archer, Jr., David G. Agresti, and Douglas W. Ming10.2138/am-2016-5408CCBYNCNDpreprint
Single-track length measurements of step-etched fission tracks in Durango apatite: Vorsprung durch TechnikRaymond Jonckheere, Murat T. Tamer, Florentine Wauschkuhn, Astian Wauschkuhn, and Lothar Ratschbacher10.2138/am-2017-5988preprint