866

Chromium solubility in perovskite at high pressure: The structure of (Mg_1–xCr_x)(Si_1–xCr_x)O₃ (with x = 0.07) synthesized at 23 GPa and 1600 °C
Luca Bindi, Ekaterina A. Sirotkina, Andrey V. Bobrov and Tetsuo Irifune

561

New data on lunar magmatic processes
Gary Lofgren

562

Thermodynamic approach provides insights into the aging process of biological apatite
Jill Dill Pasteris

564

Effects of chemical composition and temperature on transport properties of silica-rich glasses and melts
Anne M. Hofmeister, Alan G. Whittington, Jonas Goldsand and Reinhardt G. Criss

578

Speciation of and D/H partitioning between fluids and melts in silicate-D-O-H-C-N systems determined in-situ at upper mantle temperatures, pressures, and redox conditions
Bjorn O. Mysen, Tokio Tomita, Eiji Ohtani and Akio Suzuki

589

Effect of oxalate and pH on chrysotile dissolution at 25 °C: An experimental study
Marisa Rozalen, M. Elena Ramos, Saverio Fiore, Fernando Gervilla and F. Javier Huertas

601

Gabbroic Shergottite Northwest Africa 6963: An intrusive sample of Mars
Justin Filiberto, Juliane Gross, Jarek Trela and Eric C. Ferré

607

Césarferreiraite, Fe²⁺Fe³⁺₂(AsO₄)₂(OH)₂·8H₂O, from Eduardo mine, Conselheiro Pena, Minas Gerais, Brazil: Second arsenate in the laueite mineral group
Ricardo Scholz, Nikita V. Chukanov, Luiz A.D. Menezes Filho, Daniel Atencio, Leonardo Lagoeiro, Fernanda M. Belotti, Mário L.S.C. Chaves, Antônio W. Romano, Paulo R. Brandão, Dmitriy I. Belakovskiy and Igor Pekov

612

Atomic structure and formation mechanism of (101) rutile twins from Diamantina (Brazil)
Nina Daneu, Aleksander Rečnik and Werner Mader

625

Mathesiusite, K₅(UO₂)₄(SO₄)₄(VO₅)(H₂O)₄, a new uranyl vanadate-sulfate from Jáchymov, Czech Republic
Jakub Plášil, František Veselovsk, Jan Hloušek, Radek Škoda, Milan Novák, Jiří Sejkora, Jiří Čejka, Pavel Škácha and Anatoly V. Kasatkin

633

Comparison of metal enrichment in pyrite framboids from a metal-enriched and metal-poor estuary
Daniel Gregory, Sebastien Meffre and Ross Large

645

Chemistry of bone mineral, based on the hypermineralized rostrum of the beaked whale Mesoplodon densirostris
Zhen Li and Jill D. Pasteris

654

Allendeite (Sc₄Zr₃O₁₂) and hexamolybdenum (Mo,Ru,Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite
Chi Ma, John R. Beckett and George R. Rossman

667

Hutcheonite, Ca₃Ti₂(SiAl₂)O₁₂, a new garnet mineral from the Allende meteorite: An alteration phase in a Ca-Al-rich inclusion
Chi Ma and Alexander N. Krot

671

Infrared absorption spectroscopy of SiO₂-moganite
Ming Zhang and Terry Moxon

681

Kaolinite transformation into dickite during burial diagenesis
Javier Cuadros, Raquel Vega, Alejandro Toscano and Xabier Arroyo

696

Effect of clays and metal containers in retaining Sm³⁺ and ZrO²⁺ and the process of reversibility
Said El Mrabet, Miguel A. Castro, Santiago Hurtado, M. Mar Orta, M. Carolina Pazos, María Villa-Alfageme and María D. Alba

704

Solid solutions and phase transitions in (Ca,M²⁺)M²⁺Si₂O₆ pyroxenes (M²⁺ = Co, Fe, Mg)
Luciana Mantovani, Mario Tribaudino, Giovanni Bertoni, Giancarlo Salviati and Geoffrey Bromiley

712

Further complexities of the 10 Å phase revealed by infrared spectroscopy and X-ray diffraction
Alison R. Pawley and Mark D. Welch

720

Solid phases of FeSi to 47 GPa and 2800 K: New data
Zachary M. Geballe and Raymond Jeanloz

724

In-situ infrared spectra of hydroxyl in wadsleyite and ringwoodite at high pressure and high temperature
Xiaozhi Yang, Hans Keppler, Leonid Dubrovinsky and Alexander Kurnosov

730

Experimental and infrared characterization of the miscibility gap along the tremolite-glaucophane join
David M. Jenkins, Michael A. Carpenter and Ming Zhang

742

A calorimetric and thermodynamic investigation of the synthetic analogs of cobaltomenite, CoSeO₃ 2H₂O, and ahlfeldite, NiSeO₃·2H₂O
Marina V. Charykova, Vladimir G. Krivovichev, Maksim I. Lelet, Oxana S. Yakovenko, Evgeny V. Suleimanov, Wulf Depmeier, Viktorina V. Semenova and Maina L. Zorina

749

Arsenate partitioning from ferrihydrite to hematite: Spectroscopic evidence
Soumya Das, Joseph Essilfie-Dughan and M. Jim Hendry

755

Pressure-induced phase transitions in coesite
Ana Černok, Tiziana Boffa Ballaran, Razvan Caracas, Nobuyoshi Miyajima, Elena Bykova, Vitali Prakapenka, Hanns-Peter Liermann and Leonid Dubrovinsky

764

Qingsongite, natural cubic boron nitride: The first boron mineral from the Earth’s mantle
Larissa F. Dobrzhinetskaya, Richard Wirth, Jingsui Yang, Harry W. Green, Ian D. Hutcheon, Peter K. Weber and Edward S. Grew

773

Phase relations in the system FeCO₃-CaCO₃ at 6 GPa and 900-1700 °C and its relation to the system CaCO₃-FeCO₃-MgCO₃
Anton Shatskiy, Yuri M. Borzdov, Konstantin D. Litasov, Igor N. Kupriyanov, Eiji Ohtani and Yuri N. Palyanov

786

In-situ high-temperature emissivity spectra and thermal expansion of C2/c pyroxenes: Implications for the surface of Mercury
Sabrina Ferrari, Fabrizio Nestola, Matteo Massironi, Alessandro Maturilli, Jörn Helbert, Matteo Alvaro, M. Chiara Domeneghetti and Federico Zorzi

793

Thallium geochemistry in the metamorphic Lengenbach sulfide deposit, Switzerland: Thallium-isotope fractionation in a sulfide melt
Kai Hettmann, Katharina Kreissig, Mark Rehkämper, Thomas Wenzel, Regina Mertz-Kraus and Gregor Markl

804

Fluorowardite, NaAl₃(PO₄)₂(OH)₂F₂·2H₂O, the fluorine analog of wardite from the Silver Coin mine, Valmy, Nevada
Anthony R. Kampf, Paul M. Adams, Robert M. Housley and George R. Rossman

811

Correianevesite, Fe²⁺Mn²⁺₂(PO₄)₂·3H₂O, a new reddingite-group mineral from the Cigana mine, Conselheiro Pena, Minas Gerais, Brazil
Nikita V. Chukanov, Ricardo Scholz, Natalia V. Zubkova, Igor V. Pekov, Dmitriy I. Belakovskiy, Konstantin V. Van, Leonardo Lagoeiro, Leonardo M. Graça, Klaus Krambrock, Luiz C.A. de Oliveira, Luiz A.D. Menezes Filho, Mário L.S.C. Chaves and Dmitriy Y. Pus

817

Structural complexity of lead silicates: Crystal structure of Pb₂₁[Si₇O₂₂]₂[Si₄O₁₃] and its comparison to hyttsjöite
Oleg I. Siidra, Dmitry S. Zenko and Sergey V. Krivovichev

824

A high-resolution powder neutron diffraction study of the crystal structure of neighborite (NaMgF₃) between 9 and 440 K
Kevin S. Knight

839

Geothermometric study of Cr-spinels of peridotite mantle xenoliths from northern Victoria Land (Antarctica)
Cristina Perinelli, Ferdinando Bosi, Giovanni B. Andreozzi, Aida M. Conte and Pietro Armienti

847

Crystal chemistry of the ulvöspinel-qandilite series
Ferdinando Bosi, Ulf Hålenius and Henrik Skogby

852

Quantitative models linking igneous amphibole composition with magma Cl and OH content
Paul A. Giesting and Justin Filiberto

876

ERRATUM
P. Bonazzi, G.O. Lepore, L. Bindi, C. Chopin, T. A. Husdal and O. Medenbach

870

NEW MINERAL NAMES
Dmitriy Belakovskiy, Fernando Cámara, and G. Diego Gatta