American Mineralogist
LETTER
193 LETTERS Pressure-induced H bonding: Neutron diffraction study of brucite, Mg(OD)2, to 9.3 GPa
REGULAR ARTICLE
1 ARTICLES Pressure-induced phase transition in cristobalite: An X-ray powder diffraction study to 4.4 GPa
9 The pressure behavior of α cristobalite
15 High-pressure X-ray diffraction study of carbonates: MgCO3, CaMg(CO)3, and CaCO3
24 Ferroelastic phase transition along the join CaAl2Si2O8-SrAl2Si2O8
31 Correlations between 17O NMR parameters and local structure around oxygen in high-pressure silicates: Implications for the structure of silicate melts at high pressure
43 Thermal reactions of chrysotile revisited: A 29Si and 25Mg MAS NMR study
51 Determination of accurate [4]Fe3+, [6]Fe3+, and [6]Fe2+ site populations in synthetic annite by Mössbauer spectroscopy
63 Crystal chemistry and microstructures of plutonic biotite
73 Twinning in meteoritic and synthetic perovskite
80 In-situ study of the thermal behavior of cryptomelane by high-voltage and analytical electron microscopy
91 Structure and polytypism of bementite, a modulated layer silicate
107 Structural relaxation of the chlorite surface imaged by the atomic force microscope
113 Numerical modeling of crystal shapes in thin sections: Estimation of crystal habit and true size
120 Optimal geothermometry and geobarometry
134 Enthalpy of formation of wollastonite (CaSiO3) and anorthite (CaAl2Si2O8) by experimental phase equilibrium measurements and high-temperature solution calorimetry
145 A high-temperature assembly for 1.91-cm (3/4-in.) piston-cylinder apparatus
148 An experimental simulation of upper mantle metasomatism
154 Nearly pure iron staurolite in the Llano Uplift and its petrologic significance
161 S speciation in submarine basaltic glasses as determined by measurements of SKα X-ray wavelength shifts
168 Hollandite-type phases: Geometric consideration of unit-cell size and symmetry
175 Maricopaite, an unusual lead calcium zeolite with an interrupted mordenite-like framework and intrachannel Pb4, tetrahedral clusters
197 An unquenchable perovskite phase of MgGeO3 and comparison with MgSiO3 perovskite
200 Orientation, location, and total energy of hydration of channel H2O in cordierite investigated by ab-initio total energy calculations
NEW MINERAL NAMES
185 NEW MINERAL NAMES
MEMORIAL
190 MEMORIAL Memorial of Charles Milton, 1896-1990
TABLE OF CONTENTS
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SPECIAL COLLECTIONS
Table of Contents
AmMin submission to acceptance/”first publication” is at a record average of about three to four months. Our acceptance to “final” publication is presently another 13 months on average.
Special Collections
American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.