1507

Te-rich raspite, Pb(W_0.56Te_0.44)O₄, from Tombstone, Arizona, U.S.A.: The first natural example of Te⁶⁺ substitution for W⁶⁺
Marcelo B. Andrade, Hexiong Yang, Robert T. Downs, Robert A. Jenkins and Isabel Fay

1193

An alternative to alteration and melting processes in the Earth: Reaction between hydrogen (H₂) and oxide components in the Earth in space and time
Bjorn Mysen

1195

The crystallographic and petrogenetic significance of pegmatite phosphates
Frédéric Hatert

1197

Small grains and big implications: Accessory Ti- and Zr-minerals as petrogenetic indicators in HP and UHP marbles
Peter Tropper

1199

Natural Fe-bearing oxides and sulfates from the Rio Tinto Mars analog site: Critical assessment of VNIR reflectance spectroscopy, laser Raman spectroscopy, and XRD as mineral identification tools
Pablo Sobron, Janice L. Bishop, David F. Blake, Bin Chen and Fernando Rull

1206

Dissolution rates of amorphous Al- and Fe-phosphates and their relevance to phosphate mobility on Mars
Valerie M. Tu, Elisabeth M. Hausrath, Oliver Tschauner, Valentin Iota and Gerald W. Egeland

1216

Stability and spectroscopy of Mg sulfate minerals: Role of hydration on sulfur isotope partitioning
Ema Bobocioiu and Razvan Caracas

1221

Synthesis and characterization of the Mars-relevant phosphate minerals Fe- and Mg-whitlockite and merrillite and a possible mechanism that maintains charge balance during whitlockite to merrillite transformation
Christopher T. Adcock, Elisabeth M. Hausrath, Paul M. Forster, Oliver Tschauner and Kirellos J. Sefein

1233

Determination of the concentration of asbestos minerals in highly contaminated mine tailings: An example from abandoned mine waste of Crètaz and Èmarese (Valle d’Aosta, Italy)
Alessandro F. Gualtieri, Simone Pollastri, Nicola Bursi Gandolfi, Francesco Ronchetti, Carlo Albonico, Alessandro Cavallo, Giovanna Zanetti, Paola Marini and Orietta Sala

1248

Pressure-volume equation of state for chromite and magnesiochromite: A single-crystal X-ray diffraction investigation
Fabrizio Nestola, Benedetta Periotto, Giovanni B. Andreozzi, Enrico Bruschini and Ferdinando Bosi

1254

The systematics of the spinel-type minerals: An overview
Cristian Biagioni and Marco Pasero

1265

Formation of SiH₄ and H₂O by the dissolution of quartz in H₂ fluid under high pressure and temperature
Ayako Shinozaki, Hiroyuki Kagi, Naoki Noguchi, Hisako Hirai, Hiroaki Ohfuji, Taku Okada, Satoshi Nakano and Takehiko Yagi

1270

Identifying the spin transition in Fe²⁺-rich MgSiO₃ perovskite from X-ray diffraction and vibrational spectroscopy
Razvan Caracas, Haruka Ozawa, Kei Hirose, Hirofumi Ishii, Nozomu Hiraoka, Yasuo Ohishi and Naohisa Hirao

1277

Mantle-derived guyanaite in a Cr-omphacitite xenolith from Moses Rock diatreme, Utah
Daniel J. Schulze, Roberta L. Flemming, Patrick H.M. Shepherd and Herwart Helmstaedt

1284

Pluton assembly and the genesis of granitic magmas: Insights from the GIC pluton in cross section, Sierra Nevada Batholith, California
Keith D. Putirka, Joe Canchola, Jeffrey Rash, Oscar Smith, Gerardo Torrez, Scott R. Paterson and Mihai N. Ducea

1304

First-principles molecular dynamics simulations of MgSiO₃ glass: Structure, density, and elasticity at high pressure
Dipta B. Ghosh, Bijaya B. Karki and Lars Stixrude

1315

A new UHP metamorphic complex in the ~1.8 Ga Nagssugtoqidian Orogen of West Greenland
William E. Glassley, John A. Korstgård, Kai Sørensen and Steen W. Platou

1335

Visible and short-wave infrared reflectance spectroscopy of REE fluorocarbonates
David J. Turner, Benoit Rivard and Lee A. Groat

1347

Volatile abundances of coexisting merrillite and apatite in the martian meteorite Shergotty: Implications for merrillite in hydrous magmas
Francis M. McCubbin, Charles K. Shearer, Paul V. Burger, Erik H. Hauri, Jianhua Wang, Stephen M. Elardo and James J. Papike

1355

Sb⁵⁺ and Sb³⁺ substitution in segnitite: A new sink for As and Sb in the environment and implications for acid mine drainage
Stuart J. Mills, Barbara Etschmann, Anthony R. Kampf, Glenn Poirier and Matthew Newville

1360

First-principles elasticity of monocarboaluminate hydrates
Juhyuk Moon, Seyoon Yoon, Renata M. Wentzcovitch and Paulo J.M. Monteiro

1369

Substitution of Ti³⁺ and Ti⁴⁺ in hibonite (CaAl₁₂O₁₉)
Patricia M. Doyle, Paul F. Schofield, Andrew J. Berry, Andrew M. Walker and Kevin S. Knight

1383

Exploring the effect of lithium on pegmatitic textures: An experimental study
Victoria Maneta and Don R. Baker

1404

XANES measurements of Cr valence in olivine and their applications to planetary basalts
Aaron S. Bell, Paul V. Burger, Loan Le, Charles K. Shearer, James J. Papike, Steve R. Sutton, Matthew Newville and John Jones

1413

Z-contrast imaging and ab initio study on “d” superstructure in sedimentary dolomite
Zhizhang Shen, Hiromi Konishi, Izabela Szlufarska, Philip E. Brown and Huifang Xu

1420

Influence of temperature, pressure, and chemical composition on the electrical conductivity of granite
Lidong Dai, Haiying Hu, Heping Li, Jianjun Jiang and Keshi Hui

1429

Ti- and Zr-minerals in calcite-dolomite marbles from the ultrahigh-pressure Kimi Complex, Rhodope mountains, Greece: Implications for the P-T evolution based on reaction textures, petrogenetic grids, and geothermobarometry
Alexander Proyer, Ioannis Baziotis, Evripidis Mposkos and Dieter Rhede

1449

Ab initio thermodynamic and thermophysical properties of sapphirine end-members in the join Mg₄Al₈Si₂O₂₀-Mg₃Al₁₀SiO₂₀
Donato Belmonte, Giulio Ottonello and Marino Vetuschi Zuccolini

1462

The relation between Li ↔ Na substitution and hydrogen bonding in five-periodic single-chain silicates nambulite and marsturite: A single-crystal X-ray study
Mariko Nagashima, Thomas Armbruster, Uwe Kolitsch and Thomas Pettke

1471

Natural analogs of belite sulfoaluminate cement clinkers from Negev Desert, Israel
Ella V. Sokol, Svetlana N. Kokh, Yevgeny Vapnik, Vincent Thiéry and Sophia A. Korzhova

1488

Australian sedimentary opal-A and its associated minerals: Implications for natural silica sphere formation
Moritz Liesegang and Ralf Milke

1500

The 2H and 3R polytypes of sabieite, NH₄Fe³⁺(SO₄)₂, from a natural fire in an oil-bearing shale near Milan, Ohio
Anthony R. Kampf, R. Peter Richards and Barbara P. Nash

1511

New Mineral Names
Fernando Cámara, G. Diego Gatta, Yulia Uvarova, Olivier C. Gagne and Dmitriyi Belakovskiy

1519

WWII, Mineralogy and Me: A Memoir
Christine Elrod