1433

The turquoise-chalcosiderite Cu(Al,Fe³⁺)₆(PO₄)₄(OH)₈·4H₂O solid-solution series: A Mössbauer spectroscopy, XRD, EMPA, and FTIR study
Yassir A. Abdu, Sharon K. Hull, Mostafa Fayek, and Frank C. Hawthorne

1443

Variability in sepiolite: Diffraction studies
Manuel Sánchez del Río, Emilia García-Romero, Mercedes Suárez, Iván da Silva, Luis Fuentes-Montero, and Gema Martínez-Criado

1455

Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais, Brazil: Crystal chemistry and Rietveld refinement
Daniel Atencio, Reynaldo R. Contreira Filho, Stuart J. Mills, José M.V. Coutinho, Sara B. Honorato, Alejandro P. Ayala, Javier Ellena, and Marcelo B. de Andrade

1461

Zeolitic-type Brønsted-Lowry sites distribution imaged on clinochlore
Giovanni Valdrè, Sergio Tosoni, and Daniele Moro

1490

Phase stability and compression study of (Fe_0.89,Ni_0.11)₃S up to pressure of the Earth’s core
Takeshi Sakai, Eiji Ohtani, Hidenori Terasaki, Seiji Kamada, Naohisa Hirao, Masaaki Miyahara, and Masahiko Nishijima

1503

Experimental investigations into the silicification of olivine: Implications for the reaction mechanism and acid neutralization
Helen E. King, Oliver Plümper, Thorsten Geisler, and Andrew Putnis

1547

Experimental determination of stability relations between monazite, fluorapatite, allanite, and REE-epidote as a function of pressure, temperature, and fluid composition
Bartosz Budzyń, Daniel E. Harlov, Michael L. Williams, and Michael J. Jercinovic

1624

Eliseevite, Na_1.5Li[Ti₂Si₄O_12.5(OH)_1.5]·2H₂O, a new microporous titanosilicate from the Lovozero alkaline massif (Kola Peninsula, Russia)
Victor N. Yakovenchuk, Gregory Yu. Ivanyuk, Sergey V. Krivovichev, Yakov A. Pakhomovsky, Ekaterina A. Selivanova, Julia A. Korchak, Yuri P. Men’shikov, Svetlana V. Drogobuzhskaya, and Oleg A. Zalkind

1662

Memorial of Rustum Roy, 1924–2010
Sridhar Komarneni

1650

Differential degassing of H2O, Cl, F, and S: Potential effects on lunar apatite
Gokce Ustunisik, Hanna Nekvasil, and Donald Lindsley

1636

An experimental study of phosphorous and aluminosilicate speciation in and partitioning between aqueous fluids and silicate melts determined in-situ at high temperature and pressure
Bj??rn O. Mysen

1425

Compressional wave velocity measurements through sandy sediments containing methane hydrate
Qin Zhang, Feng-Guang Li, Chang-Yu Sun, Qing-Ping Li, Xiang-Yang Wu, Bei Liu, and Guang-Jin Chen

1467

Thermodynamic properties of alloys of gold-74/palladium-26 with variable amounts of iron and the use of Au-Pd-Fe alloys as containers for experimental petrology
J. Brian Balta, John R. Beckett, and Paul D. Asimow

1475

A first-principles investigation of hydrous defects and IR frequencies in forsterite: The case for Si vacancies
Koichiro Umemoto, Renata M. Wentzcovitch, Marc M. Hirschmann, David L. Kohlstedt, and Anthony C. Withers

1480

Estimating compositions of natural ringwoodite in the heavily shocked Grove Mountains 052049 meteorite from Raman spectra
L. Feng, Y. Lin, S. Hu, L. Xu, and B. Miao

1495

The compression pathway of quartz
Richard M. Thompson, Robert T. Downs, and Przemyslaw Dera

1512

The effect of polymorphic structure on the structural and chemical stability of yttrium disilicates
Evgeny Galunin, Miquel Vidal, and Mar??a D. Alba

1521

Diffusion in yttrium aluminium garnet at the nanometer-scale: Insight into the effective grain boundary width
Katharina Marquardt, Quentin M. Ramasse, Christian Kisielowski, and Richard Wirth

1530

Elasticity and anisotropy of Fe₃C at high pressures
Mainak Mookherjee

1537

Raman spectroscopy of titanomagnetites: Calibration of the intensity of Raman peaks as a sensitive indicator for their Ti content
Pavel Zinin, Lisa Tatsumi-Petrochilos, Lydie Bonal, Tayro Acosta, Julia Hammer, Stuart Gilder, and Mike Fuller

1568

Quantum-mechanical calculations of the Raman spectra of Mg- and Fe-cordierite
Reinhard Kaindl, Daniel M. T??bbens, and Udo Haefeker

1575

Coarsening kinetics of coexisting peristerite and film microperthite over 10⁴ to 10⁵ years
Ian Parsons and John D. Fitz Gerald

1585

Local structure variations observed in orthoenstatite at high pressures
Dongzhou Zhang, Jennifer M. Jackson, Wolfgang Sturhahn, and Yuming Xiao

1593

Static disorders of atoms and experimental determination of Debye temperature in pyrope: Low- and high-temperature single-crystal X-ray diffraction study
Akihiko Nakatsuka, Mami Shimokawa, Noriaki Nakayama, Osamu Ohtaka, Hiroshi Arima, Maki Okube, and Akira Yoshiasa

1606

Effect of hydration on the single-crystal elasticity of Fe-bearing wadsleyite to 12 GPa
Zhu Mao, Steven D. Jacobsen, Daniel J. Frost, Catherine A. McCammon, Erik H. Hauri, and Thomas S. Duffy

1613

Early Proterozoic weathering processes under low O₂ conditions reconstructed from a 2.45 Ga paleosol in Pronto, Canada
Takashi Murakami, Takeshi Kasama, and Satoshi Utsunomiya

1630

The development of shape- and crystallographic-preferred orientation in CaPtO₃ post-perovskite deformed in pure shear
Richard McCormack, David P. Dobson, Nicolas P. Walte, Nobuyoshi Miyajima, Takashi Taniguchi, and Ian G. Wood

1654

NEW MINERAL NAMES
Paula C. Piilonen, Ralph Rowe, Glenn Poirier, and Kimberly T. Tait

1664

BOOK REVIEW, NANOSCALE: VISUALIZING AN INVISIBLE WORLD by Kenneth S. Deffreyes and Stephen E. Deffreyes
John C. Schumacher