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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
Chromium-bearing phases in the Earth's mantle: Evidence from experiments in the Mg2SiO4–MgCr2O4 system at 10–24 GPa and 1600 °CEkaterina A. Sirotkina, Andrey V. Bobrov, Luca Bindi, and Tetsuo Irifune10.2138/am-2018-6264preprint
New insights into the metallogeny of the Nayongzhi MVT Zn-Pb deposit in Guizhou Province (South China): Evidence from geology, bulk C-O-S and in situ S-Pb isotopesJia-Xi Zhou, Xuan-Ce Wang, Simon A. Wilde, Kai Luo, Zhi-Long Huang, Tao Wu, and Zhong-Guo Jin10.2138/am-2018-6238preprint
Visible, Near-Infrared and Mid-Infrared Spectral Characterization of Hawaiian Fumarolic Alteration near Kilauea’s December 1974 Flow: Implications for Spectral Discrimination of Alteration Environments on MarsMarcella Yant, Kelsey E. Young, A. Deanne Rogers, Amy C. McAdam, Jacob E. Bleacher, Janice L. Bishop, and Stanley A. Mertzman10.2138/am-2018-6116preprint
An experimental approach to quantify the effect of tetrahedral boron in tourmaline on the boron isotope fractionation between tourmaline and fluidMartin Kutzschbach, Bernd Wunder, Robert B. Trumbull, Alexander Rocholl, Anette Meixner, and Wilhelm Heinrich10.2138/am-2017-6127preprint
Stability field of the Cl-rich scapolite marialiteKaleo M. F. Almeida and David M. Jenkins10.2138/am-2017-6132preprint
The equation of state of wadsleyite solid solutions: Constraining the effects of anisotropy and crystal chemistryJohannes Buchen, Hauke Marquardt, Tiziana Boffa Ballaran, Takaaki Kawazoe, and Catherine McCammon10.2138/am-2017-6162preprint
Crystallization of groundmass nanolites in the 2011 Shinmoedake eruptionMayumi Mujin, Michihiko Nakamura, and Akira Miyake10.2138/am-2017-6052CCBYNCNDpreprint
Mineralogical, geochemical, and textural indicators of crystal accumulation in the Adamello Batholith (Northern Italy)Alina Maraike Fiedrich, Olivier Bachmann, Peter Ulmer, Chad D. Deering, Karsten Kunze, and Julien Leuthold10.2138/am-2017-6026preprint
Multiple-reaction geobarometry for olivine-bearing igneous rocksLuca Ziberna, Eleanor C.R. Green, and Jon D. Blundy10.2138/am-2017-6154preprint
Trace element zoning in hornblende: tracking and modeling the crystallization of a calc-alkaline arc plutonCalvin G. Barnes, Ryan Berry, Melanie A. Barnes, and W.G. Ernst10.2138/am-2017-6063preprint
Extraterrestrial formation of oldhamite and portlandite through thermal metamorphism of calcite in the Sutter’s Mill carbonaceous chondriteChristopher W. Haberle and Laurence A. J. Garvie10.2138/am-2017-6180preprint
Granites and rhyolites: Messages from Hong Kong, courtesy of zirconCalvin Miller10.2138/am-2017-6260preprint
Melting relations in the system CaCO3-MgCO3 at 6 GPaJan Müller, Monika Koch-Müller, Dieter Rhede, D.H. Wilke Franziska, and Richard Wirth10.2138/am-2017-5831preprint
Rutile: A novel recorder of high-fO2 fluids in subduction zonesAlicia M. Cruz-Uribe10.2138/am-2017-6261preprint
The solubility of CePO4 monazite and YPO4 xenotime in KCl-H2O fluids at 800°C and 1.0 GPa: Implications for REE transport in high-grade crustal fluidsPhilipp Mair, Peter Tropper, Daniel E. Harlov, and Craig E. Manning10.2138/am-2017-6172preprint
Age discordance and mineralogyIgor M. Villa and John M. Hanchar10.2138/am-2017-6084preprint
Towards the wider application of 29Si NMR spectroscopy to paramagnetic transition metal silicate minerals: copper(II) silicatesJonathan F. Stebbins10.2138/am-2017-6176preprint
Crystallization experiments in rhyolitic systems: the effect of temperature cycling and starting material on crystal size distributionMarize Muniz da Silva, Francois Holtz, and Olivier Namur10.2138/am-2017-5981preprint
Defect Contributions to the Heat Capacities and Stabilities of Some Chain, Ring and Sheet Silicates, with Implications for Mantle MineralsH. Wayne Nesbitt, A.N. Cormack, and Grant S. Henderson10.2138/am-2017-6103preprint
Dolomite dissociation indicates ultra-deep (>150 km) subduction of a garnet-bearing dunite block (the Sulu UHP terrane)Bin Su, Yi Chen, Shun Guo, and Jing-Bo Liu10.2138/am-2017-5982preprint
Non-destructive, multi-method, internal analysis of multiple inclusions in a single diamond: first occurrence of mackinawite (Fe,Ni)1+xSGiovanna Agrosì, Gioacchino Tempesta, Daniela Mele, Ignazio Allegretta, Roberto Terzano, Steven B. Shirey, Graham D. Pearson, and Fabrizio Nestola10.2138/am-2017-6178preprint
Raman Spectroscopy of 1 Water-rich Stishovite and Dense High-Pressure Silica up to 55 GPaCarole Nisr, Sang-Heon Shim, Kurt Leinenweber, and Andrew Chizmeshya10.2138/am-2017-5944preprint
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
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