2433

Steinhardtite, a new body-centered-cubic allotropic form of aluminum from the Khatyrka CV3 carbonaceous chondrite
Luca Bindi, Nan Yao, Chaney Lin, Lincoln S. Hollister, Glenn J. MacPherson, Gerald R. Poirier, Christopher L. Andronicos, Vadim V. Distler, Michael P. Eddy, Alexander Kostin, Valery Kryachko, William M. Steinhardt and Marina Yudovskaya

2161

Merrillite and apatite as recorders of planetary magmatic processes
Brad Jolliff

2163

Comparing clays from Mars and Earth: Implications for martian habitability
John Bridges

2165

Data-driven abductive discovery in mineralogy
Robert M. Hazen

2171

Thermal expansion of fluorapatite-hydroxylapatite crystalline solutions
Guy L. Hovis, Brian T. Scott, Caitlin M. Altomare, Amanda R. Leaman, Matthew D. Morris, Gary P. Tomaino and Francis M. McCubbin

2176

Synthesis and structure of carbonated barium and lead fluorapatites: Effect of cation size on A-type carbonate substitution
Zachary Wilt, Caitlyn Fuller, Taia Bachman, Victoria Weidner, Jill D. Pasteris and Claude H. Yoder

2187

Optical absorption spectroscopy study of the causes for color variations in natural Fe-bearing gahnite: Insights from iron valency and site distribution data
Rosa Anna Fregola, Henrik Skogby, Ferdinando Bosi, Veronica D’Ippolito, Giovanni B. Andreozzi and Ulf Hålenius

2196

Si-magnetite nano-precipitates in silician magnetite from banded iron formation: Z-contrast imaging and ab initio study
Huifang Xu, Zhizhang Shen and Hiromi Konishi

2203

Ordering kinetics in synthetic Mg(Al,Fe³⁺)₂O₄ spinels: Quantitative elucidation of the whole Al-Mg-Fe partitioning, rate constants, activation energies
Filippo Parisi, Davide Lenaz, Francesco Princivalle and Luciana Sciascia

2211

Experimental study of phlogopite reaction rim formation on olivine in phonolite melts: Kinetics, reaction rates, and residence times
Thomas Bartholomew Grant, Ralf Milke, Bernd Wunder, Richard Wirth and Dieter Rhede

2227

Etch-pit size, dissolution rate, and time in the experimental dissolution of olivine: Implications for estimating olivine lifetime at the surface of Mars
Michael A. Velbel

2234

Ferrian saponite from the Santa Monica Mountains (California, U.S.A., Earth): Characterization as an analog for clay minerals on Mars with application to Yellowknife Bay in Gale Crater
Allan H. Treiman, Richard V. Morris, David G. Agresti, Trevor G. Graff, Cherie N. Achilles, Elizabeth B. Rampe, Thomas F. Bristow, Douglas W. Ming, David F. Blake, David T. Vaniman, David L. Bish, Steve J. Chipera, Shaunna M. Morrison and Robert T. Downs

2251

A large spectral survey of small lunar craters: Implications for the composition of the lunar mantle
Paul G. Lucey, Jessica A. Norman, Sarah T. Crites, G. Jeffrey Taylor, B. Ray Hawke, Myriam Lemelin and H. Jay Melosh

2258

In-situ characterization of oxalic acid breakdown at elevated P and T: Implications for organic C-O-H fluid sources in petrologic experiments
Francis M. McCubbin, Dimitri A. Sverjensky, Andrew Steele and Bjorn O. Mysen

2272

Slawsonite-celsian-hyalophane assemblage from a picrite sill (Prague Basin, Czech Republic)
Zuzana Tasáryová, Jiří Fr.da, Vojtĕch Janoušek and Martin Racek

2280

Determining hematite content from NUV/Vis/NIR spectra: Limits of detection
William Balsam, Junfeng Ji, Devon Renock, Bobby C. Deaton and Earle Williams

2292

The role of water in generation of group II kimberlite magmas: Constraints from multiple saturation experiments
Alexander G. Sokol, Alexey N. Kruk and Yury N. Palyanov

2303

Quantum mechanical modeling of hydrolysis and H₂O-exchange in Mg-, Ca-, and Ni-silicate clusters: Implications for dissolution mechanisms of olivine minerals
Christin P. Morrow, Amanda A. Olsen and James D. Kubicki

2313

Redox-driven exsolution of iron-titanium oxides in magnetite in Miller Range (MIL) 03346 nakhlite: Evidence for post crystallization oxidation in the nakhlite cumulate pile?
Kevin Righter, Lindsay P. Keller, Zia Rahman and Roy Christoffersen

2320

Energetics of lanthanide-doped calcium phosphate apatite
S. Mahboobeh Hosseini, Christophe Drouet, Ahmed Al-Kattan and Alexandra Navrotsky

2328

Thermal conductivity of molten and glassy NaAlSi₃O₈, CaMgSi₂O₆, and Mg₂SiO₄ by non-equilibrium molecular dynamics at elevated temperature and pressure
Dane Tikunoff and Frank J. Spera

2337

Energetics of heterometal substitution in ε-Keggin [MO₄Al₁₂(OH)₂₄(OH₂)₁₂]^6/7/8+ ions
Dana Reusser, William H. Casey and Alexandra Navrotsky

2344

Ab initio calculations of elastic constants of plagioclase feldspars
Pamela Kaercher, Burkhard Militzer and Hans-Rudolf Wenk

2353

Diagenetic formation of interlayer-deficient fluorophlogopite as a clay mineral in Early Cambrian phosphorite (Lesser Himalaya, India): The trioctahedral analog of illite
Gerhard Franz, Dorothee Hippler, Dieter Rhede, Richard Wirth, Dhiraj Mohan Banerjee and Nicolaj Mahlstedt

2369

Natural sepiolite: Enthalpies of dehydration, dehydroxylation, and formation derived from thermochemical studies
Lyubov P. Ogorodova, Irina A. Kiseleva, Marina F. Vigasina, Yurii K. Kabalov, Roman O. Grishchenko and Lyubov V. Mel’chakova

2374

A new interpretation of decomposition products of serpentine under shock compression
Youjun Zhang, Toshimori Sekine and Hongliang He

2378

A model for calculating the viscosity of natural iron-bearing silicate melts over a wide range of temperatures, pressures, oxygen fugacites, and compositions
Xianzhe Duan

2389

The replacement of chalcopyrite by bornite under hydrothermal conditions
Jing Zhao, Joël Brugger, Yung Ngothai and Allan Pring

2398

Characterization of porosity in sulfide ore minerals: A USANS/SANS study
Fang Xia, Jing Zhao, Barbara E. Etschmann, Joël Brugger, Christopher J. Garvey, Christine Rehm, Hartmut Lemmel, Jan Ilavsky, Young-Soo Han and Allan Pring

2405

Synthesis of a quenchable high-pressure form of magnetite (h-Fe₃O₄) with composition ^Fe1(Fe²⁺_0.75Mg_0.26)^Fe2(Fe³⁺_0.70Cr_0.15Al_0.11Si_0.04)₂O₄
Monika Koch-Müller, Enrico Mugnaioli, Dieter Rhede, Sergio Speziale, Ute Kolb and Richard Wirth

2416

High-pressure elasticity of sodium majorite garnet, Na₂MgSi₅O₁₂
Mainak Mookherjee

2424

Armstrongite from Khan Bogdo (Mongolia): Crystal structure determination and implications for zeolite-like cation exchange properties
Ernesto Mesto, Ekaterina Kaneva, Emanuela Schingaro, Nikolay Vladykin, Maria Lacalamita and Fernando Scordari

2437

NEW MINERAL NAMES
Fernando Cámara, Olivier C. Gagne, Yulia Uvarova and Dmitriy I. Belakovskiy

2445

Spectroscopic Methods in Mineralogy and Materials Sciences
Rachel L. Klima

2187

Optical absorption spectroscopy study of the causes for color variations in natural Fe-bearing gahnite: Insights from iron valency and site distribution data
Rosa Anna Fregola, Henrik Skogby, Ferdinando Bosi, Veronica D’Ippolito, Giovanni B. Andreozzi and Ulf Hålenius

2196

Si-magnetite nano-precipitates in silician magnetite from banded iron formation: Z-contrast imaging and ab initio study
Huifang Xu, Zhizhang Shen and Hiromi Konishi

2203

Ordering kinetics in synthetic Mg(Al,Fe³⁺)₂O₄ spinels: Quantitative elucidation of the whole Al-Mg-Fe partitioning, rate constants, activation energies
Filippo Parisi, Davide Lenaz, Francesco Princivalle and Luciana Sciascia

2227

Etch-pit size, dissolution rate, and time in the experimental dissolution of olivine: Implications for estimating olivine lifetime at the surface of Mars
Michael A. Velbel

2251

A large spectral survey of small lunar craters: Implications for the composition of the lunar mantle
Paul G. Lucey, Jessica A. Norman, Sarah T. Crites, G. Jeffrey Taylor, B. Ray Hawke, Myriam Lemelin and H. Jay Melosh

2272

Slawsonite-celsian-hyalophane assemblage from a picrite sill (Prague Basin, Czech Republic)
Zuzana Tasáryová, Jiří Fr.da, Vojtĕch Janoušek and Martin Racek

2337

Energetics of heterometal substitution in ε-Keggin [MO₄Al₁₂(OH)₂₄(OH₂)₁₂]^6/7/8+ ions
Dana Reusser, William H. Casey and Alexandra Navrotsky

2353

Diagenetic formation of interlayer-deficient fluorophlogopite as a clay mineral in Early Cambrian phosphorite (Lesser Himalaya, India): The trioctahedral analog of illite
Gerhard Franz, Dorothee Hippler, Dieter Rhede, Richard Wirth, Dhiraj Mohan Banerjee and Nicolaj Mahlstedt

2378

A model for calculating the viscosity of natural iron-bearing silicate melts over a wide range of temperatures, pressures, oxygen fugacites, and compositions
Xianzhe Duan

2405

Synthesis of a quenchable high-pressure form of magnetite (h-Fe₃O₄) with composition ^Fe1(Fe²⁺_0.75Mg_0.26)^Fe2(Fe³⁺_0.70Cr_0.15Al_0.11Si_0.04)₂O₄
Monika Koch-Müller, Enrico Mugnaioli, Dieter Rhede, Sergio Speziale, Ute Kolb and Richard Wirth

2416

High-pressure elasticity of sodium majorite garnet, Na₂MgSi₅O₁₂
Mainak Mookherjee

2433

Steinhardtite, a new body-centered-cubic allotropic form of aluminum from the Khatyrka CV3 carbonaceous chondrite
Luca Bindi, Nan Yao, Chaney Lin, Lincoln S. Hollister, Glenn J. MacPherson, Gerald R. Poirier, Christopher L. Andronicos, Vadim V. Distler, Michael P. Eddy, Alexander Kostin, Valery Kryachko, William M. Steinhardt and Marina Yudovskaya