238

Molecular water in beryl, ^VIAl₂ [Be₃Si₆O₁₈]·nH₂O, as a function of pressure and temperature: An experimental study
Rainer Pankrath and Klaus Langer

245

Fluid-induced nucleation of (Y + REE)-phosphate minerals within apatite: Nature and experiment. Part I. Chlorapatite
Daniel E. Harlov, Hans-Jürgen Förster, and Timo G. Nijland

262

X-ray spectroscopic investigations of fluids in the hydrothermal diamond anvil cell: The hydration structure of aqueous La³⁺ up to 300 °C and 1600 bars
Alan J. Anderson, Sumedha Jayanetti, Robert A. Mayanovic, William A. Bassett, and I-Ming Chou

293

Ordering of hydroxyl defects in hydrous wadsleyite β-Mg₂SiO₄)
S.C. Kohn, R.A. Brooker, D.J. Frost, A.E. Slesinger, and B.J. Wood

327

Study of the (010) olivine surface by Rutherford backscattering spectrometry in channeling geometry
Laurence Lemelle, François Abel, Camille Cohen, and François Guyot

347

Monoclinic nearly stoichiometric wüstite at low temperatures
Helmer Fjellåg, Bjørn C. Hauback, Tom Vogt, and Svein Stølen

185

Scales of disequilibrium and rates of equilibration during metamorphism
William D. Carlson

359

Chloride ion sites in silicate and aluminosilicate glasses: a preliminary study by ³⁵Cl solid-state NMR
Jonathan F. Stebbins and Lin-Shu Du

364

Nuclear magnetic resonance and infrared spectroscopic study of excess-boron olenite from Koralpe, Styria, Austria
Bernd Marler and Andreas Ertl

205

Characterization of coexisting NH₄– and K-micas in very low-grade metapelites
Fernando Nieto

217

Effect of sonic and ultrasonic frequencies on the crystallization of basalt
Karen S. Bartels and Tanya Furman

227

Sulfur saturation limits in silicate melts and their implications for core formation scenarios for terrestrial planets
Astrid Holzheid and Timothy L. Grove

269

Fibrous nanoinclusions in massive rose quartz: HRTEM and AEM investigations
Chi Ma, Julia S. Goreva, and George R. Rossman

277

Polysomatism in h??gbomite: The crystal structures of 10T, 12H, 14T, and 24R polysomes
Clivia Hejny and Thomas Armbruster

302

The crystal structure and cation ordering of Phase-X-(K_1-x-n)₂ (Mg_1-n[Al,Cr]_n)₂Si₂O₇H_2x
A potential K- and H-bearing phase in the mantle
Franco Mancini, George E. Harlow, and Christopher Cahill

307

Feasibility of determining the quantitative OH content of garnets with Raman spectroscopy
Elizabeth H. Arredondo and George R. Rossman

312

Raman spectroscopic study of garnet inclusions in diamonds from the mantle transition zone
Philippe Gillet, Violaine Sautter, Jeffery Harris, Bruno Reynard, Benjamin Harte, and Martin Kunz

318

Raman spectroscopy of Fe₂O₃ to 62 GPa
Sang-Heon Shim and Thomas S. Duffy

333

Equation of state of dense hydrous magnesium silicate phase A, Mg₇Si₂O₈(OH)₆
Wilson A. Crichton and Nancy L. Ross

339

Si-F bonding in aluminosilicate glasses: Inferences from ab initio NMR calculations
Yun Liu and Hanna Nekvasil

350

On the nature of tincalconite
Rudy L. Luck and Ge Wang

355

NEW MINERAL NAMES
John L. Jambor and Andrew C. Roberts

370

MEMORIAL: Memorial of Harold Lloyd James, 1912-2000
Paul B. Barton

368

BOOK REVIEW: OPTICAL CRYSTALLOGRAPHY. By F. Donald Bloss. Mineralogical Society of America (Monograph Series, Publication no. 5), 1999, Washington, D.C. 239 p.
Edward F. Stoddard

372

ERRATUM: Minor element chemistry of hemo-ilmenite and magnetite in cumulate rocks from the Sokndal Region, South Rogaland, Norway, by Peter Robinson, Peter T. Panish, and Suzanne A. McEnroe (vol. 86, p. 1469-1476, 2001).