American Mineralogist
REGULAR ARTICLE
201 In-situ spectroscopic investigation of high-pressure hydrated (Mg,Fe)SiO3 glasses: OH vibrations as a probe of glass structure
213 Magnetic properties of the magnetite-spinel solid solution: Saturation magnetization and cation distributions
222 High-pressure phase transition in brucite, Mg(OH)2
231 Quartz-coesite transition revisited: Reversed experimental determination at 500-1200 °C and retrieved thermochemical properties
239 Reversed brackets for the P1 ↔ I1 transition in anorthite at high pressures and temperatures
247 Sequences of charged sheets in rectorite
253 A crystal-chemical model for Pbca orthopyroxene
268 The dehydration kinetics and microtexture of analcime from two parageneses
280 Enthalpies of mixing for disordered alkali feldspars at high temperature: A test of regular solution thermodynamic models and a comparison of hydrofluoric acid and lead borate solution calorimetric techniques
285 Palladium oxide equilibration and the thermodynamic properties of MgAl2O4 spinel
297 The influence of excess alkalis on the viscosity of a haplogranitic melt
305 Viscosity regimes of homogeneous silicate melts
319 Comparison of microanalytical methods for estimating H2O contents of silicic volcanic glasses
329 Site preference of rare earth elements in fluorapatite
336 The carbonate content in high-temperature apatite: An analytical method applied to apatite from the Jacupiranga alkaline complex
345 Synthetic biotite oxidation under hydrothermal conditions
355 The Gibbs energy of formation of huntite, CaMg3(CO3)4, at 298 K and 1 bar from electrochemical cell measurements
361 Petrology of the regional sillimanite zone, west-central New Hampshire, U.S.A., with implications for the development of inverted isograds
377 Nchwaningite, Mn2+2SiO3(OH)2.H2O, a new pyroxene-related chain silicate from the N’chwaning mine, Kalahari manganese field, South Africa
387 The crystal structure of manandonite-2H2
394 The crystal structure of gillulyite, Tl2(As,Sb)8S13, from the Mercur gold deposit, Tooele County, Utah, U.S.A.
400 The crystal structure of pararealgar, As4S4
NEW MINERAL NAMES
404 NEW MINERAL NAMES
MEMORIAL
410 Memorial of Louis H. Ahrens, 1918-1990 41O
412 Memorial of Zyunpei Harada, 1898-1992
BOOK REVIEW
415 GRANULITES AND CRUSTAL EVOLUTION. Edited by D. Vielzeufand Ph. Vidal. Kluwer Academic Publishers (NATO ASI Series C, vol. 311),1990, xvi + 585 pages.
415 METALLOGENY OF TIN, Lecture Notes in Earth Sciences 32. By Bernd Lehmann. Edited by Somdev Bhattacharji, Gerald M. Friedman, Horst J. Neugebauer, and Adolf Seilacher. Springer-Verlag, Berlin. 1990. 211 pages.
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American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.