LETTERS

E.A. Mathez and D.M. Mogk
Characterization of carbon compounds on a pyroxene surface from a gabbro xenolith in basalt by time-of-flight secondary ion mass spectrometry    918
Abstract
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Toshihiro Kogure and Jillian F. Banfield
Direct identification of the six polytypes of chlorite characterized by semi-random stacking    925
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Guy L. Hovis, Jacques Roux, and Pascal Richet
A new era in hydrofluoric acid solution calorimetry: Reduction of required sample size below 10 milligrams    931
Abstract
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ARTICLES

Ben Hanson and John H. Jones
The systematics of Cr³⁺ and Cr²⁺ partitioning between olivine and liquid in the presence of spinel     669
Abstract
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James E. Mungall, Claudia Romano, and Donald B. Dingwell
Multicomponent diffusion in the molten system K₂O-Na₂O-Al₂O₃-SiO₂-H₂O     685
Abstract
Full Text (188 K)

D.K. Moore, D.J. Cherniak, and E.B. Watson
Oxygen diffusion in rutile from 750 to 1000°C and 0.1 to 1000 MPa     700
Abstract
Full Text (188 K)

Dimitrios Xirouchakis and Donald H. Lindsley
Equilibria among titanite, hedenbergite, fayalite, quartz, ilmenite, and magnetite: Experiments and internally consistent thermodynamic data for titanite     712
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Deposit Items

Joseph V. Chernosky Jr., Robert G. Berman, and David M. Jenkins
The stability of tremolite: New experimental data and a thermodynamic assessment     726
Abstract
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M.A. Mercy, Peter A. Rock, William H. Casey, and Mehdi M. Mokarram
Gibbs energies of formation for hydrocerussite [Pb(OH)₂·(PbCO₃)₂(s)] and hydrozincite {[Zn(OH)₂]₃·(ZnCO₃)₂(s)} at 298 K and 1 bar from electrochemical cell measurements     739
Abstract
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R.T. Wilkin and H.L. Barnes
Solubility and stability of zeolites in aqueous solution: I. Analcime, Na-, and K-clinoptilolite     746
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Javier Cuadros and Stephen P. Altaner
Characterization of mixed-layer illite-smectite from bentonites using microscopic, chemical and X-ray methods: Constraints on the smectite-to-illite transformation mechanism     762
Abstract
Full Text (324 K)

Maria Franca Brigatti, Paola Frigieri and Luciano Poppi
Crystal chemistry of Mg-, Fe-bearing muscovites-2M₁     775
Abstract
Full Text (124 K)
Deposit Items

V. Baron, J. Gutzmer, H. Rundlof, and R. Tellgren
The influence of iron substitution on the magnetic properties of hausmannite, Mn²⁺(Fe,Mn)³⁺₂O₄    786
Abstract
Full Text (172 K)

David P. Dobson, Neil S. Cohen, Quentin A. Pankhurst, and John P. Brodholt
A convenient method for measuring ferric iron in magnesiowustite (MgO-Fe_1-xO)    794
Abstract
Full Text (116 K)

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Dawn E. Janney and Jillian F. Banfield
Distribution of cations and vacancies and the structure of defects in oxidized intermediate olivine by atomic-resolution TEM and image simulation     799
Abstract
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Ekhard K.H. Salje, Andrew Buckley, Gustaaf Van Tendeloo, Yoshihiro Ishibashi, and Gordon L. Nord Jr.
Needle twins and right-angled twins in minerals: Comparison between experiment and theory     811
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Nikolay Zotov and Hans Keppler
The influence of water on the structure of hydrous sodium tetrasilicate glasses     823
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George Amthauer and George R. Rossman
The hydrous component in andradite garnet     835
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Tracey Chaplin, G. David Price, and Nancy L. Ross
Computer simulation of the infrared and Raman activity of pyrope garnet, and assignment of calculated modes to specific atomic motions     841
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M. Darby Dyar, Marjorie E. Taylor, Timothy M. Lutz, Carl A. Francis, Charles V. Guidotti, and Michael Wise
Inclusive chemical characterization of tourmaline: Mossbauer study of Fe valence and site occupancy     848
Abstract
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Steven I. Boldish and William B. White
Optical band gaps of selected ternary sulfide minerals     865
Abstract
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Heribert Graetsch
Characterization of the high-temperature modifications of incommensurate tridymite L3-T_o(MX-1) from 25 to 250°C     872
Abstract
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Max W. Schmidt, Larry W. Finger, Ross J. Angel, and Robert E. Dinnebier
Synthesis, crystal structure, and phase relations of AlSiO₃OH, a high-pressure hydrous phase     881
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Marjorie D. Medrano, Howard T. Evans Jr., Hans-Rudolf Wenk, and David Z. Piper
Phosphovanadylite: A new vanadium phosphate mineral with a zeolite-type structure     889
Abstract
Full Text (132 K)
Deposit Items

Julie B. Selway, Milan Novák, Frank C. Hawthorne, Petr Cerný, Luisa Ottolini, and T. Kurtis Kyser
Rossmanite [](LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₄, a new alkali-deficient tourmaline: Description and crystal structure     896
Abstract
Full Text (80 K)
Deposit Items

Andrei Y. Barkov, Kauko V.O. Laajoki, Stanislav S. Gornostayev, Yakov A. Pakhomovskii, and Yuri P. Men'shikov
Sorosite, Cu(Sn,Sb), a new mineral from the Baimka placer deposit, western Chukotka, Russian Far East    901
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NEW MINERAL NAMES    907

John L. Jambor, Nikolai N. Pertsev, and Andrew C. Roberts
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PRESENTATION OF AWARDS FOR 1997

Rebecca Lange
Presentation of the Roebing Medal of the Mineralogical Society of America for 1997 to Ian Carmichael    912
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Ian Carmichael
Acceptance of the Roebling Medal of the Mineralogical Society of America for 1997    914
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David R. Veblen
Presentation of the Mineralogical Society of America Award for 1997 to Jillian Fiona Banfield    916
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Jillian Fiona Banfield
Acceptance of the Mineralogical Society of America Award for 1997    917
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SPECIAL NOTICE: IMA REPORT ON ZEOLITES    935
Abstract
Complete IMA Report (338 K)

ERRATUM    936

C. K. Gessmann, B. Spiering, and M. Raith
Experimental study of the Fe-Mg exchange between garnet and biotite: Constraints on the mixing behavior and analysis of the cation-exchange mechanisms. Vol. 82, 1225-1240, 1997
Abstract of Referenced Article
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