American Mineralogist, 1999, V 84, N 4, April.

An International Journal of Earth and Planetary Materials

ARTICLES
Philippe Courtial and Donald Bruce Dingwell Densities of melts in the CaO-MgO-Al2O3-SiO2 system 465 Paolo Papale Modeling of the solubility of a two-component H2O + CO2 fluid in silicate liquids 477 Dorothee J.M. Burkhard, Gene C. Ulmer, Günther Redhammer, and George H. Myer Dynamic electrochemical assessment of redox reactions in natural micas between 613 and 1373 K at 105 Pa 493 Dominique de Ligny and Alexandra Navrotsky Energetics of kaolin polymorphs 506 Dawn E. Janney and Hans-Rudolf Wenk Peristerite exsolution in metamorphic plagioclase from the Lepontine Alps: An analytical and transmission electron microscope study 517 Hengzhong Zhang and Jillian F. Banfield A new kinetic model for the nanocrystalline anatase-to-rutile transformation revealing rate dependence on number of particles 528 Edward S. Grew, Günther J. Redhammer, Georg Amthauer, Mark A. Cooper, Frank C. Hawthorne, and Karl Schmetzer Iron in kornerupine: A 57Fe Mössbauer spectroscopic study and comparison with single-crystal structure refinement 536 Brigitte Wopenka, John J. Freeman, and Edward Grew Raman spectroscopic identification of B-free and B-rich kornerupine (prismatine) 550 Richard J. Harrison, Martin T. Dove, Kevin S. Knight, and Andrew Putnis In situ neutron diffraction study of non-convergent cation ordering in the (Fe3O4)1-x(MgAl2O4)x spinel solid solution 555 Ru Y. Zhang, Jin F. Shu, Ho K. Mao, and Juhn G. Liou Magnetite lamellae in olivine and clinohumite from Dabie UHP ultramafic rocks, Central China 564 Matthew J. Kohn Why most "dry" rocks should cool "wet" 570 Jeffrey H. Tepper and Scott M. Kuehner Complex zoning in apatite from the Idaho batholith: A record of magma mixing and intracrystalline trace element diffusion 581 J. Najorka, M. Gottschalk, G. Franz, and W. Heinrich Ca-Sr distribution between amphibole, clinopyroxene, and chloride-bearing solutions 596 D. Robinson and A. Santana de Zamora The smectite to chlorite transition in the Chipilapa geothermal system, El Salvador 607 Susan H. Sutheimer, Patricia A. Maurice, and Qunhui Zhou Dissolution of well and poorly crystallized kaolinites: Al speciation and effects of surface characteristics 620 Giuseppe G. Biino, Norman Mannella, Alexander Kay, Bongjin Mun, and Charles S. Fadley Surface chemical characterization and surface diffraction effects of real margarite (001): An angle-resolved XPS investigation 629 H. Wayne Nesbitt and M. Reinke Properties of As and S at NiAs, Nis, and Fe1-xS surfaces, and reactivity of niccolite in air and water 639 Fanrong Chen, Rodney C. Ewing, and Sue B. Clark The Gibbs free energies and enthalpies of formation of uranium (VI) phases: An empirical method of prediction 650 Michael Schindler and Frank C. Hawthorne Schubnelite, [Fe3+(V5+O4(H2O)], a novel heteropolyhedral framework mineral 665 Herta Effenberger, Werner H. Paar, Dan Topa, Franz J. Culetto, and Gerald Giester Toward the crystal structure of nagyagite, [Pb(Pb,Sb)S2] [(Au,Te)] 669 Table 6 is available here
LETTERS
Jennifer M. Jackson, Stanislav V. Sinogeikin, and Jay D. Bass Elasticity of MgSiO3 orthoenstatite 677 Hexiong Yang, Jürgen Konzett, Charles T. Prewitt, and Yingwei Fei Single-crystal structure refinement of M4k-substituted potassiuym-richterite, K(KCa)Mg5Si8O22(OH)2 681
NEW MINERAL NAMES 685 BOOK REVIEWS 689 SPECIAL NOTICE: IMA report on mineral nomenclature 691 ERRATA 692