American Mineralogist
LETTER
217 LETTERS Crystal chemistry of Fe-bearing anhydrous phase B: Implications for transition zone mineralogy
REGULAR ARTICLE
1 ARTICLES Cation field effects on orthosilicate glass vibrations
8 A 27Al and 29Si MAS NMR and infrared spectroscopic study of Al-Si ordering in natural and synthetic sapphirine
19 X-ray powder diffraction and 23Na, 27Al, and 29Si MAS-NMR investigation of nepheline-kalsilite crystalline solutions
30 The fluxing effect of fluorine at magmatic temperatures (600-800 °C): A scanning calorimetric study
34 Mössbauer spectroscopy of tetrahedral Fe3+ in trioctahedral micas
44 Temperature dependence of cation disorder in MgAl2O4 spinel using 27Al and 17O magic-angle spinning NMR
53 Plagioclase feldspars: Activity-composition relations based upon Darken’s quadratic formalism and Landau theory
62 Crystal field spectra and geochemistry of transition metal ions in silicate melts and glasses
76 Tetrahedral-site occupancies in reedmergnerite and synthetic boron albite (NaBSi3O8)
85 Thermodynamic studies of mordenite, dehydrated mordenite, and gibbsite
94 Dielectric constants of silicate garnets and the oxide additivity rule
101 Dielectric constants of diaspore and B-, Be-, and P-containing minerals, the polarizabilities of B2O3 and P2O5, and the oxide additivity rule
107 Direct observation on the formation of antiphase domain boundaries in pigeonite
115 Confirmation of the terrestrial occurrence of orthopyroxene with space group P21ca
121 Stacking faults in synthetic celsian
126 Phosphorus in S-type magmas: The P2O5 content of feldspars from peraluminous granites, pegmatites, and rhyolites
146 Selective preservation of melt inclusions in igneous phenocrysts
156 Synthetic fluid inclusions: Part XI. Notes on the application of synthetic fluid inclusions to high P-T experimental aqueous geochemistry
168 Titanian clinohumite in the carbonatites of the Jacupiranga Complex, Brazil: Mineral chemistry and comparison with titanian clinohumite from other environments
179 Geochemical alteration of pyrochlore group minerals: Microlite subgroup
189 The crystal structure of garronite
197 Capgaronnite, HgS·Ag(Cl,Br,I), a new sulfide-halide mineral from Var, France
201 Vyalsovite, a new sulfide-hydroxide of iron, calcium, and aluminum
221 Scanning tunneling microscopy of pyrite {100}: Surface structure and step reconstruction
NEW MINERAL NAMES
207 NEW MINERAL NAMES
BOOK REVIEW
214 BOOK REVIEWS
TABLE OF CONTENTS
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SPECIAL COLLECTIONS
Table of Contents
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American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.