453

New constraints on metamorphic history of Adirondack diopsides (New York, U.S.A.): Al and δ¹⁸O profiles
G. Desbois, J. Ingrin, N.T. Kita, J.W. Valley, and E. Deloule

503

In-situ measurement of dissolution of anorthite in Na-Cl-OH solutions at 22 °C using phase-shift interferometry
Hisao Satoh, Yoshihiro Nishimura, Katsuo Tsukamoto, Akira Ueda, Koichi Kato, and Shinzo Ueta

510

Experimental investigation of the breakdown of dolomite in rock cores at 100 MPa, 650–750 °C
Michael T. DeAngelis, Theodore C. Labotka, David R. Cole, Mostafa Fayek, and Lawrence M. Anovitz

525

An infrared spectroscopic study of the OH stretching frequencies of talc and 10-Å phase to 10 GPa
Stephen A. Parry, Alison R. Pawley, Ray L. Jones, and Simon M. Clark

532

Co²⁺-Cu²⁺ substitution in bieberite solid-solution series, (Co_1—xCu_x)SO₄·7H₂O, 0.00 ≤ x ≤ 0.46: Synthesis, single-crystal structure analysis, and optical spectroscopy
Günther J. Redhammer, Lisa Koll, Manfred Bernroider, Gerold Tippelt, Georg Amthauer, and Georg Roth

670

The effect of H₂O on olivine crystallization in MORB: Experimental calibration at 200 MPa
Renat R. Almeev, François Holtz, Jürgen Koepke, Fleurice Parat, and Roman E. Botcharnikov

687

Onion morphology and microstructure of polyhedral serpentine
Alain Baronnet, Muriel Andréani, Olivier Grauby, Bertrand Devouard, Serge Nitsche, and Damien Chaudanson

699

Entropies of mixing and subsolidus phase relations of forsterite–fayalite (Mg₂SiO₄–Fe₂SiO₄) solid solution
Edgar Dachs and Charles A. Geiger

691

Ion microprobe analysis of (²³¹Pa)/(²³⁵U) and an appraisal of protactinium partitioning in igneous zircon
Axel K. Schmitt

695

Structural investigation of Mg local environments in silicate glasses by ultra-high field ²⁵Mg 3QMAS NMR spectroscopy
Keiji Shimoda, Yasuhiro Tobu, Moriaki Hatakeyama, Takahiro Nemoto, and Koji Saito

460

Hammadah al Hamra 193: the first amphibole-bearing winonaite
Christine Floss, Bradley L. Jolliff, Gretchen K. Benedix, Frank J. Stadermann, and Jay Reid

468

Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy)
Angela Laurora, Maria Franca Brigatti, Annibale Mottana, Daniele Malferrari, and Enrico Caprilli

481

Magnetic excitations and heat capacity of fayalite, Fe₂SiO₄
M.C. Aronson, L. Stixrude, M.K. Davis, W. Gannon, and K. Ahilan

491

The barometer tremolite + tschermakite + 2 albite = 2 pargasite + 8 quartz: Constraints from experimental data at unit silica activity, with application to garnet-free natural assemblages
Subhadip Bhadra and Abhijit Bhattacharya

518

Dissolution of the (001) surface of galena: An in situ assessment of surface speciation by Fluid-cell micro-Raman spectroscopy
Giovanni De Giudici, Piercarlo Ricci, Pierfranco Lattanzi, and Alberto Anedda

546

Clinoenstatite exsolution in diopsidic augite of Dabieshan: Garnet peridotite from depth of 300 km
Xiang-Wen Liu, Zhen-Min Jin, and Harry W. Green II

553

Heat-pulse calorimetry measurements on natural chlorite-group minerals
C. Bertoldi, E. Dachs, and P. Appel

560

Low-temperature behavior of NaGaSi₂O₆
F. Nestola, N. Rotiroti, M. Bruno, M. Tribaudino, S. van Smaalen, H. Ohashi, and G.J. Redhammer

570

Single-crystal elasticity of zoisite Ca₂Al₃Si₃O₁₂(OH) by Brillouin scattering
Zhu Mao, Fuming Jiang, and Thomas S. Duffy

577

The effect of valence state and site geometry on Ti L_3,2 and O K electron energy-loss spectra of Ti_xO_y phases
E. Stoyanov, F. Langenhorst, and G. Steinle-Neumann

587

Characterization of defects and the local structure in natural and synthetic alunite (K,Na,H₃O)Al₃(SO₄)₂(OH)₆ by multi-nuclear solid-state NMR spectroscopy
Ulla Gro Nielsen, Juraj Majzlan, Brian Phillips, Martine Ziliox, and Clare P. Grey

598

Using a mineral lifetime diagram to evaluate the persistence of olivine on Mars
Amanda Albright Olsen and J. Donald Rimstidt

603

Complexity in 15- and 30-sectors polygonal serpentine: Longitudinal sections, intrasector stacking faults and XRPD satellites
E. Mugnaioli, M. Logar, M. Mellini, and C. Viti

617

Light-induced alteration of arsenic sulfides: A new product with an orthorhombic crystal structure
Luca Bindi and Paola Bonazzi

621

Transmission electron microscopy study of magnetites in a freshwater population of magnetotactic bacteria
A. Isambert, N. Menguy, E. Larquet, F. Guyot, and J.-P. Valet

631

Anomalous behavior at the I2/a to Imab phase transition in SiO₂-moganite: An analysis using hard-mode Raman spectroscopy
Peter J. Heaney, David A. McKeown, and Jeffrey E. Post

640

The system Ag-Au-Se: Phase relations below 405 K and determination of standard thermodynamic properties of selenides by solid-state galvanic cell technique
Evgeniy G. Osadchii and Ekaterina A. Echmaeva

648

Rhombohedral (9R) and hexagonal (6H) perovskites in barium silicates under high pressure
Hitoshi Yusa, Nagayoshi Sata, and Yasuo Ohishi

655

Structural effects of pressure on monoclinic chlorite: A single-crystal study
P.F. Zanazzi, M. Montagnoli, S. Nazzareni, and P. Comodi

662

Neptunium incorporation in sodium-substituted metaschoepite
Amanda L. Klingensmith, Kathryn M. Deely, William S. Kinman, Virginia Kelly, and Peter C. Burns

675

Symmetry and crystal structure of biaxial elbaite-liddicoatite tourmaline from the Transbaikalia region, Russia
Alexander Shtukenberg, Ira Rozhdestvenskaya, Olga Frank-Kamenetskaya, Julia Bronzova, Harald Euler, Armin Kirfel, Irina Bannova, and Anatoly Zolotarev

703

NEW MINERAL NAMES
Paula C. Piilonen, Andrew J. Locock, Ralph Rowe, and T. Scott Ercit

708

Memorial of Werner Schreyer, 1930-2006
Friedrich A. Seifert and Walter V. Maresch

711

BOOK REVIEW: MESOZOIC TO CENOZOIC ALKALINE MAGMATISM IN THE BRAZILIAN PLATFORM edited by P. Comin-Chiaramonti and C. de Barros Gomes. (2005) Edusp, San Paolo, Brazil (www.edusp.com.br). ISBN 85-314-0903-9. 750 pages.
D. Ken Bailey