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The crystal structures of Mg2Fe2C4O13, with tetrahedrally coordinated carbon, and Fe13O19, synthesized at deep mantle conditions Marco Merlini, Michael Hanfland, Ashkan Salamat, Sylvain Petitgirard, and Harald Müller preprint

Shock-induced mobilization of metal and sulfide in planetesimals: Evidence from the Buck Mountains 005 (L6 S4) dike-bearing chondrite Alex Ruzicka, Ryan Brown, Jon Friedrich, Melinda Hutson, Richard Hugo, and Mark Rivers preprint

High-pressure synthesis of skiagite-majorite garnet and investigation of its crystal structure Leyla Ismailova, Andrey Bobrov, Maxim Bykov, Elena Bykova, Valerio Cerantola, Innokenty Kantor, Ilya Kupenko, Catherine McCammon, Vadim Dyadkin, Dmitry Chernyshov, Sakura Pascarelli, Alexander Chumakov, Natalia Dubrovinskaia, and Leonid Dubrovinsky preprint

On understanding the structure and composition of crystals I. David Brown preprint

Laser-Induced Breakdown Spectroscopy (LIBS) as a tool for in situ mapping and textural interpretation of lithium in pegmatite minerals Marcus T. Sweetapple and Steven Tassios preprint

Composition dependence of spin transition in (Mg,Fe)SiO3 bridgmanite Susannah M. Dorfman, James Badro, Jean-Pascal Rueff, Paul Chow, Yuming Xiao, and Philippe Gillet preprint

Magnesium isotopic composition of the deep continental crust Wei Yang, Fang-Zhen Teng, Wang-Ye Li, Sheng-Ao Liu, Shan Ke, Yong-Sheng Liu, Hong-Fu Zhang, and Shan Gao preprint

Are Covalent Bonds really Directed? I. David Brown preprint

Role of volatiles (S, Cl, H2O) and silica activity on the crystallization of haüyne and nosean in phonolitic magmas (Eifel, Germany and Saghro, Morocco) Céline Baudouin and Fleurice Parat preprint

Reaching new boundaries for in-situ U-Th geochronology J.P. Bernal preprint

Data, ideas, and the nature of scientific progress Keith Putirka preprint

Field and model constraints on silicic melt segregation by compaction/hindered settling: the role of water and its effect on latent heat release Cin-Ty A. Lee, Douglas M. Morton, Michael J. Farner, and Pranabendu Moitra preprint

The MnCO3- II high pressure polymorph of rhodocrosite Marco Merlini, Michael Hanfland, and Mauro Gemmi preprint

Oriented Multiphase Needles in Garnet from Ultrahigh-Temperature Granulites, Connecticut, USA Jennifer A. Axler and Jay J. Ague preprint

High-pressure compressibility and phase stability of Mn-dolomite (kutnohorite) Sarah E.M. Palaich, Robert A. Heffern, Anke Watenphul, Jason Knight, and Abby Kavner preprint

Fe-Mg diffusion in spinel: New experimental data and a point defect based model Katharina Vogt, Ralf Dohmen, and Sumit Chakraborty preprint

A Possible New Al-bearing Hydrous Mg-silicate (23 Å phase) in the Deep Upper Mantle Nao Cai, Toru Inoue, Kiyoshi Fujino, Hiroaki Ohfuji, and Hisayoshi Yurimoto preprint

Solubility and solution mechanisms of chlorine and fluorine in aluminosilicate melts at high pressure and high temperature Celia Dalou, Charles Le Losq, Bjorn O. Mysen, and George D. Cody preprint

P-V-T equation of state and high-pressure behavior of CaCO3 aragonite Ying Li, Yongtao Zou, Ting Chen, Xuebing Wang, Xintong Qi, Haiyan Chen, Jianguo Du, and Baosheng Li preprint

New thermobarometers for martian igneous rocks, and some implications for secular cooling on Mars Jerrod Lessel and Keith Putirka preprint

Water effects on the anharmonic properties of forsterite Yan Yang, Zhongping Wang, Joseph R. Smyth, Jia Liu, and Qunke Xia preprint

Ca-Zn solid solutions in C2/c pyroxenes: synthesis, crystal structure and implications for Zn geochemistry Claudia Gori, Mario Tribaudino, Luciana Mantovani, Davide Delmonte, Francesco Mezzadri, Edmondo Gilioli, and Gianluca Calestani preprint

Evidence for Nb2+ and Ta3+ in silicate melts under highly reducing conditions: a XANES study Camille Cartier, Tahar Hammouda, Maud Boyet, Olivier Mathon, Denis Testemale, and Bertrand N. Moine preprint

Aluminum environments in synthetic Ca-Tschermak clinopyroxene (CaAlAlSiO6) from Rietveld refinement, 27Al NMR and first-principles calculations Roberta L. Flemming, Victor Terskikh, and Eric Ye preprint

Oceanic lavas sampling the high 3He/4He mantle reservoir: Primitive, depleted, or re-enriched? G. Garapića, A. Mallikb, R. Dasguptab, and M.G. Jacksona preprint

An Updated Calibration of the Plagioclase-Liquid Hygrometer-Thermometer Applicable to Basalts through Rhyolites Laura E. Waters and Rebecca A. Lange preprint

Age, petrochemistry, and origin of a REE-rich mineralization in the Longs Peak - St. Vrain pluton near Jamestown, Colorado (USA) Julien Allaz, Markus B. Raschke, Philip M. Persson, and Charles R. Stern preprint

U-Th baddeleyite geochronology and its significance to date the emplacement of silica undersaturated magmas Wan N. Wu, Axel K. Schmitt, and Lucia Pappalardo preprint

Polycrystallinity of green rust minerals and their synthetic analogs: Implications for particle formation and reactivity in complex systems Carol A. Johnson, Mitsuhiro Murayama, Kirsten Küse, and Michael F. Hochella Jr. preprint

Synthesis and structure of a stuffed derivative of α-quartz, Mg0.5AlSiO4 Hongwu Xu, Peter J. Heaney, Ping Yu, and Huifang Xu preprint

Volatiles in magmas related to the Campanian Ignimbrite eruption: experiments vs. natural findings Sara Fanara, Roman E. Botcharnikov, Danilo M. Palladino, Franziska Adams, Julia Buddensieck, Andreas Mulch, and Harald Behrens preprint

Accuracy of timescales retrieved from diffusion modeling in olivine: a 3D perspective Thomas Shea, Fidel Costa, Daniel Krimer, and Julia Eve Hammer preprint

Fe pre-enrichment: a new method to counteract iron loss in experiments on basaltic melts Yann-Aurelien Brugier, Marina Alletti, and Michel Pichavante preprint

Aluminosilicate melts and glasses at 1 to 3 GPa: Temperature and pressure effects on recovered structural and density changes Saurav Bista, Jonathan F. Stebbins, William B. Hankins, and Thomas W. Sisson preprint

Elastic softening of leucite and the lack of polar domain boundaries Oktay Aktas, Michael A. Carpenter, and Ekhard K.H. Salje preprint

Equation of state and elasticity of the 3.65 Å phase- implications for the X-discontinuity Mainak Mookherjee, Sergio Speziale, Hauke Marquardt, Sandro Jahn, Bernd Wunder, Monika Koch-Müller, and Hanns-Peter Liermann preprint

Chemical interactions between a sedimentary diapir and surrounding magma: evidence from the Phepane Dome and Bushveld Complex, South Africa Rachel H. P. Ireland and Sarah C. Penniston-Dorland preprint

Elastic Plastic Self Consistent (EPSC) Modeling of Plastic Deformation in Fayalite Olivine Pamela C. Burnley preprint

Provenance Determination of Sapphires and Rubies using Laser-Induced Breakdown Spectroscopy and Multivariate Analysis Kristen A. Kochelek, Nancy J. McMillan, Catherine E. McManus, and David L. Daniel preprint

Structural insights and elasticity of single-crystal antigorite from high-pressure Raman and Brillouin spectroscopy measured in the (010) plane Hauke Marquardt, Sergio Speziale, Monika Koch-Müller, Katharina Marquardt, and Giancarlo Capitani preprint

Lightning-induced shock lamellae in quartz Reto Gieré, Wolfhard Wimmenauer, Hiltrud Müller-Sigmund, Richard Wirth, Gregory R. Lumpkin, and Katherine L. Smith preprint

Resolving oxygen isotopic disturbance in zircon: a case study from the low δ18O Scourie dykes, NW Scotland Joshua H.F.L. Davies, Richard J. Stern, Larry M. Heaman, Xavier Rojas, and Erin L. Walton preprint

Cancrinite-group minerals. Crystal-chemical description and properties under non-ambient conditions: A review G. Diego Gatta and Paolo Lotti preprint

Going small: nanoscale geochronology using atom probe tomography Stephen W. Parman preprint

The speciation of carbon monoxide in silicate melts and glasses Takahiro Yoshioka, Catherine Mccammon, Svyatoslav Shcheka, and Hans Keppler preprint

Degassing pathways of Cl-, F-, H-, and S-bearing magmas near the lunar surface: Implications for the composition and Cl isotopic values of lunar apatite Gokce Ustunisik, Hanna Nekvasil, Donald H. Lindsley, and Francis M. McCubbin preprint

Formation of rhyolite at the Okataina Volcanic Complex, New Zealand: New insights from analysis of quartz clusters in plutonic lithics Karina A. Graeter, Rachel J. Beane, Chad D. Deering, Darren Gravley, and Olivier Bachmann preprint

Experimental investigation of F, Cl, and OH partitioning between apatite and Fe-rich basaltic melt at 1.0-1.2 GPa and 950-1000 °C Francis M. McCubbin, Kathleen E. Vander Kaaden, Romain Tartèse, Jeremy W. Boyce, Sami Mikhail, Eric S. Whitson, Aaron S. Bell, Mahesh Anand, Ian A. Franchi, Jianhua Wang, and Erik H. Hauri preprint

Structural and chemical characterization of Mg[(Cr,Mg)(Si,Mg)]O4, a new post-spinel phase with six-fold coordinated silicon Luca Bindi, Ekaterina A. Sirotkina, Andrey V. Bobrov, and Tetsuo Irifune preprint

Partition of Al between Phase D and Phase H at high pressure: Results from a simultaneous structure refinement of the two phases coexisting in an unique grain Luca Bindi, Masayuki Nishi, and Tetsuo Irifune preprint

The mafic component of the lunar crust: Constraints on the crustal abundance of mantle and intrusive rock, and the mineralogy of lunar anorthosites Sarah T. Crites, Paul G. Lucey, and G. Jeffrey Taylor preprint

Grain size measurement from two-dimensional micro-X-ray diffraction: Laboratory application of a radial integration technique Michael S. Bramble, Roberta L. Flemming, and Phil J. A. McCausland preprint

Decrease of hydrogen incorporation in forsterite from CO2-H2O-rich kimberlitic liquid Virginie Baptiste, Sylvie Demouchy, Shantanu Keshav, Fleurice Parat, Nathalie Bolfan-Casanova, Pierre Condamine, and Patrick Cordier preprint

Recoil-free Fractions of Iron in Aluminous Bridgmanite from Temperature Dependent Mössbauer Spectra Jiachao Liu, Bjorn Mysen, Yingwei Fei, and Jie Li preprint

Melting curve of NaCl to 20 GPa from electrical measurements of capacitive current Zeyu Li and Jie Li preprint

Spectroscopic study of ordering in non- stoichiometric magnesium aluminate spinel Vitaly Erukhimovitch, Yuval Mordekoviz, and Shmuel Hayun preprint

Metamorphic chronology comes of age: past achievements and future prospects Matthew J. Kohn preprint

High-Pressure Phases of Cordierite From Single-Crystal X-Ray Diffraction to 15 GPa Gregory J. Finkelstein, Przemyslaw K. Dera, and Thomas S. Duffy preprint

Current limitations of molecular dynamic simulations as probes of thermo-physical behavior of silicate melts Jean-Philippe Harvey and Paul D. Asimow preprint

Transition metal incorporation into 1mackinawite (tetragonal FeS) Kideok D. Kwon, Keith Refson, and Garrison Sposito preprint

Magmatic volatiles (H, C, N, F, S, Cl) in the lunar mantle, crust, and regolith: Abundances, distributions, processes, and reservoirs Francis M. McCubbin, Kathleen E. Vander Kaaden, Romain Tartèse, Rachel L. Klima, Yang Liu, James Mortimer, Jessica J. Barnes, Charles K. Shearer, Allan H. Treiman, David J. Lawrence, Stephen M. Elardo, Dana M. Hurley, Jeremy W. Boyce, and Mahesh Anand preprint

Three-component mixed-layer illite-smectite-kaolinite (I/S/K) minerals in hydromorphic soils, south China Hanlie Hong, Feng Cheng, Ke Yin, Gordon Jock Churchman, and Chaowen Wang preprint

Elastic wave velocity anomalies of anorthite in subducting plate: In situ experiments Kyoko N. Matsukage, Yu Nishihara, Fumiya Noritake, Katsuyuki Kawamura, Noriyoshi Tsujino, Moe Sakurai, Yuji Higo, Junichi Nakajima, Akira Hasegawa, and Eiichi Takahashi preprint

Petrology on Mars Harry Y. McSween Jr. preprint

Normal to inverse transition in martian spinel: Understanding the interplay between chromium, vanadium, and iron valence state partitioning through a crystal-chemical lens James J. Papike, Paul V. Burger, Aaron S. Bell, Charles, K. Shearer, Loan Le, and John Jones preprint

New structure of high-pressure body-centered orthorhombic Fe2SiO4 Takamitsu Yamanaka, Atsushi Kyono, Yuki Nakamoto, Svetlana Kharlamova, Viktor V. Struzhkin, Stephen A. Gramsch, Ho-kwang Mao, and Russell J. Hemley preprint

Beyond the Equilibrium Paradigm: How Consideration of Kinetics Enhances Metamorphic Interpretation William D. Carlson, David R.M. Pattison, and Mark J. Caddick preprint

Uranium scavenging during mineral replacement reactions Kan Li, Allan Pring, Barbara Etschmann, Edeltraud Macmillan, Yung Ngothai, Brian O’Neill, Anthony Hooker, Fred Mosselmans, and Joël Brugger preprint

Magnetic anisotropy in natural amphibole crystals Andrea R. Biedermann, Christian Bender Koch, Thomas Pettke, and Ann M. Hirt preprint

Synthesis, characterization and thermodynamics of arsenates forming in the Ca-Fe(III)-As(V)-NO3 system: Implications for the stability of Ca-Fe arsenates Dogan Paktunc, Juraj Majzlan, Artis Huang, Yves Thibault, Michel B. Johnson, and Mary Anne White preprint

Planar microstructures in zircon from paleo-seismic zones Elizaveta Kovaleva, Urs Klötzli, Gerlinde Habler, and John Wheeler preprint

Dissolved Cl, Oxygen Fugacity, and Their Effects on Fe Behavior in a Hydrous Rhyodacitic Melt Aaron S. Bell and James D. Webster preprint

A new mineral from the Bellerberg, Eifel, Germany, intermediate between mullite and sillimanite Reinhard X. Fischer, Valeria Tikhonova, Johannes Birkenstock, Lennart A. Fischer, Klaus Herrmann, Kurt Mengel, and Hartmut Schneider preprint

Yusupovite, Na2Zr(Si6O15)(H2O)3, a new mineral species from the Darai-Pioz alkaline massif and its implications as a new microporous filter for large ions Atali A. Agakhanov, Leonid A. Pautov, Vladimir Y. Karpenko, Elena Sokolova, Yassir A. Abdu, Frank C. Hawthorne, Igor V. Pekov, and Oleg I. Siidra preprint

Compositional variation and timing of aluminum phosphate-sulfate minerals in the basement rocks along the P2 fault and in association with the McArthur River uranium deposit, Athabasca Basin, Saskatchewan, Canada Erin E. Adlakha and Keiko Hattoris preprint

Topotactic and reconstructive changes at high pressure and temperatures from Cs-natrolite to Cs-hexacelsian Huijeong Hwang, Donghoon Seoung, G. Diego Gatta, Douglas A. Blom, Thomas Vogt, and Yongjae Lees preprint

Dependence of R fluorescence lines of rubies on Cr3+ concentration at various temperatures Gao Rong, Li Heping, and Zhao Jingtai preprint

Assuring the Future of Mineralogy John B. Brady preprint

Technical Note: Calculation of stoichiometry from EMP data for apatite and other phases with mixing on monovalent anion sites Richard A. Ketcham preprint

Aluminum and iron behavior in glasses from destabilized spinels: a record of fluid/melt-mineral interaction in mantle xenoliths from Massif Central, France Michel Fialin and Christiane Wagner preprint

Silica polymorphs in lunar granite: Implications for granite petrogenesis on the Moon Stephen M. Seddio, Randy L. Korotev, Bradley L. Jolliff, and Alian Wang preprint

Origin and significance of the yellow cathodoluminescence (CL) of quartz Jens Götze, Yuanming Pan, Marion Stevens-Kalceff, Ulf Kempe, and Axel Müller preprint

Weathering of the Ethiopian volcanic province: A new weathering index to characterize and compare soils Jennifer S Le Blond, Javier Cuadros, Yordanos B Molla, Tadesse Berhanu, Mohammed Umer, Peter J Baxter, and Gail Davey preprint

Enthalpies of formation of rare earth niobates, RE3NbO7 Aleksandra Mielewczyk-Gryn and Alexandra Navrotsky preprint

Synthesis of Large and Homogeneous Single Crystals of Water-Bearing Minerals by Slow Cooling at Deep-Mantle Pressures Takuo Okuchi, Narangoo Purevjav, Naotaka Tomioka, Jung-Fu Lin, Takahiro Kuribayashi, Louise Schoneveld, Huijeong Hwang, Naoya Sakamoto, Noriyuki Kawasaki, and Hisayoshi Yurimoto preprint

Bubbles do matter Claudia Cannatelli preprint

The mobility of Nb in rutile-saturated NaCl- and NaF-bearing aqueous fluids from 1-6.5 GPa and 300-800 °C Elizabeth A. Tanis, Adam Simon, Oliver Tschauner, Paul Chow, Yuming Xiao, Pamela Burnley, Christopher J. Cline Ii, John M. Hanchar, Thomas Pettke, Guoyin Shen, and Yusheng Zhao preprint

Kinetics of deuteration in andradite Peipei Zhang, Jannick Ingrin, Christophe Depecker, and Qunke Xia preprint

The Effect of the [Na/(Na+K)] Ratio on Fe Speciation in Phonolitic Glasses Maria Rita Cicconi, Gabriele Giuli, Werner Ertel-Ingrisch, Eleonora Paris, and Donald B. Dingwell preprint

Scandium- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF + LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic) Renata Čopjaková, Radek Škoda, Michaela Vašinová Galiová, Milan Novák, and Jan Cempírek preprint

Identification of nanocrystalline goethite in reduced clay formations. Application to the Callovian-Oxfordian formation of Bure (France) Myriam Kars, Catherine Lerouge, Sylvain Grangeon, Charles Aubourg, Christophe Tournassat, Benoît Madé, and Francis Clarets preprint

Effect of crystal defects on diamond morphology during dissolution in the mantle Alexander F. Khokhryakov and Yuri N. Palyanov preprint

Inter-Laboratory Comparison of Fission Track Confined Length and Etch Figure Measurements in Apatite Richard A. Ketcham, Andrew Carter, and Anthony J. Hurford preprint

High-pressure equation of state and phase transition in PbAl2Si2O8 feldspar Nadia Curetti, Piera Benna and Emiliano Bruno preprint

222Rn and 220Rn emanations as a function of the absorbed α-doses from select metamict minerals Dariusz Malczewski and Maria Dziurowicz preprint

Pink colour in Type I diamonds: Is deformation twinning the cause? Daniel Howell, David Fisher, Sandra Piazolo, William L. Griffin, and Samantha J. Sibleys preprint

Mineralogy, materials science, energy, and environment – A 2015 perspective Alexandra Navrotsky preprint

NMR and Computational Molecular Modeling Studies of Mineral Surfaces and Interlayer Galleries: A Review R. James Kirkpatrick, Andrey G. Kalinichev, Geoffrey M. Bowers, A. Ozgur Yazaydin, Marimuthu Krishnan, Moumita Saharay, and Christin P. Morrow preprint

Nano- and Micro-geochronology in Hadean and Archean Zircons by Atom-Probe Tomography and SIMS: New Tools for Old Minerals John W. Valley, David A. Reinhard, Aaron J. Cavosie, Takayuki Ushikubo, Daniel F. Lawrence, David J. Larson, Thomas F. Kelly, David Snoeyenbos, and Ariel Strickland preprint