LETTERS

John Brodholt, Atul Patel, and Keith Refson
An ab initio study of the compressional behavior of forsterite    257
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S. Chaturvedi, R. Katz, J. Guevremont, M. A. A. Schoonen, and D. R. Strongin
XPS and LEED study of a single-crystal surface of pyrite   261
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ARTICLES

S.L.S. Stipp., W. Gutmannsbauer, Thomas Lehmann
The dynamic nature of calcite surfaces in air   1
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Higher Resolution (1.7 MB)

Eugen Libowitzky, Thomas Armbruster
Lawsonite-type phase transitions in hennomartinite, SrMn₂[Si₂O₇](OH)₂·H₂O    9
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Deposit Item

G. Artioli, A. Pavese, O. Moze
Dispersion relations of acoustic phonons in pyrope garnet: Relationship between vibrational properties and elastic constants    19
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Paul A. Schroeder, Robert J. Pruett
Fe ordering in kaolinite: Insights from ²⁹Si and ²⁷Al MAS NMR spectroscopy    26
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Martin T. Dove, Volker Heine
The use of Monte Carlo methods to determine the distribution of Al and Si cations in framework aluminosilicates from ²⁹Si MAS NMR data    39
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Bruno Reynard, Guillaume Fiquet, Jean-Paul Itie, David C. Rubie
High-pressure X-ray diffraction study and equation of state of MgSiO₃ ilmenite    45
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Robert T. Downs, Chang-Sheng Zha, Thomas S. Duffy, Larry W. Finger
The equation of state of forsterite to 17.2 GPa and effects of pressure media    51
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Giancarlo Della Ventura, Jean-Louis Robert, Frank O Hawthorne, Rene Prost
Short-range disorder of Si and Ti in the tetrahedral double-chain unit of synthetic Ti-bearing potassium-richterite    56
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Charles R. Ross II, Hans Keppler, Dante Canil, Hugh St. C. O'Neill
Structure and crystal field spectra of Co₃Al₂(SiO₄)₃ and (Mg, Ni)₃Al₂(SiO₄)₃ garnet    61
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Michel Jullien, Alain Baronnet, Bruno Goffe
Ordering of the stacking sequence in cookeite with increasing pressure: An HRTEM study    67
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Jillian F. Banfield, Sturges W. Bailey
Formation of regularly interstratified serpentine-chlorite minerals by tetrahedral inversion in long-period serpentine polytypes    79
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M. Zhang, B. Wruck, A. Graeme Barber, E.K.H. Salje, M. A. Carpenter
Phonon-spectroscopy on alkali-feldspars: Phase transitions and solid solutions    92
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Yunxiang Ni, John M. Hughes
The crystal structure of nanpingite-2M₂, the CS end-member of muscovite    105
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(Contents continued on outside back cover)

(Contents continued from front cover)

Dien Li, G.M. Bancroft, M. E. Fleet
Coordination of Si in Na₂O-SiO₂-P₂O₅ glasses using Si K- and L-edge XANES    111
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Istvan Dodony, Mihaly Posfai, Peter R. Buseck
Structural relationship between pyrite and marcasite    119
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Don R. Baker
Granitic melt viscosities: Empirical and configurational entropy models for their calculation    126
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James H. Wittke, Wendell A. Duffield, Caron Jones
Roof-rock contamination of Taylor Creek rhyolite magma as recorded in hornblende phenocrysts and biotite xenocrysts    135
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M. Dolores Pereira, Denis M. Shaw
B and Li distribution in the Peña Negra complex: An alpha track study    141
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Thomas Mulja, Anthony E. Williams-Jones, Robert P. Martin, Scott A. Wood
Compositional variation and structural state of columbite-tantalite in rare element granitic pegmatites of the Preissac-Lacorne batholith, Quebec, Canada    146
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Curtis R. Manley
Morphology and maturation of melt inclusions in quartz phenocrysts in afrom the Badlands rhyolite lava flow, southwestern Idaho    158
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David K. Teertstra, Barbara L. Sherriff
Scapolite cell-parameter trends along the solid solution series    169
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R. Y. Zhang, J. C. Liou
Coesite inclusions in dolomite from eclogite in the southern Dabie mountains, China: The significance of carbonate minerals in UHPM racks    181
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D.E. Crowe, R. G. Vaughan
Characterization and use of isotopically homogeneous standards for in situ laser microprobe analysis of ³⁴S/³²S ratios    187
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John A. Dalton, Stephen J. Lane
Electron microprobe analysis of Ca in olivines close to grain boundaries: The problem of secondary X-ray fluorescence    194
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Debra P. Dooley, Alberto E. Patiño Douce
Fluid-absent melting of F-rich phlogopite + rutile + quartz    202
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P. C. Ryan, R. C. Reynolds, Jr
The origin and diagenesis of grain-coating serpentine-chlorite in Tuscaloosa Formation sandstone, U.S. Gulf Coast    213
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Frank C. Hawthorne, Roberta Oberti, Luciano Ungaretti, Luisa Ottolini, Joel D. Grice, Gerald K. Czamanske
Fluor-ferro-leakeite, NaNa₂(Fe²⁺₂Fe³⁺₂Li)Si₈O₂₂ F₂, a new alkali amphibole from the Canada Pinabete pluton, Questa, New Mexico, U.S.A.    226
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Scott N. Kuehner, Dave J. Joswiak
Naturally occurring ferric iron sanidine from the Leucite Hills lamproite    229
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Lee A. Groat
The crystal structure of namuwite, a mineral with ZN in tetrahedral octahedral coordination, and its relationship to the synthetic basic zinc sulfates    238
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Gerald Giester, Branko Rieck
Bechererite, (Zn,Cu)₆Zn₂(OH)₁₃[(Si,S)(O,OH)₄]₂, a novel mineral species from the Tonopah-Belmont mine, Arizona   244
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NEW MINERAL NAMES    249

John L. Jambor, Nikolai N. Pertsev, Andrew C. Roberts
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BOOK REVIEWS    255

J. William Carey
THERMODYNAMICS IN GEOCHEMISTRY: THE EQUILIBRIUM MODEL. By Greg M. Anderson and David A. Crerar. Oxford University Press, New York, 1993, xx+588 pages
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Mickey E. Gunter
CRYSTAL IDENTIFICATION WITH THE POLARIZING MICROSCOPE. By R.E. Stoiber and S.A. Morse. Chapman and Hall, New York, 1994. xiv+358 pages
Full Text (220 K)