American Mineralogist
REGULAR ARTICLE
1051 β-Mg2SiO4: A potential host for water in the mantle?
1056 Effects of B and H2O on liquidus phase relations in the haplogranite system at 1 kbar
1071 Solubility of carbon dioxide in albitic melt
1086 Petrology of a Georgia Blue Ridge amphibolite unit with hornblende + gedrite + kyanite + staurolite
1097 Alteration of amphibolitic wallrocks around the Tanco rare-element pegmatite, Bernic Lake, Manitoba
1122 Cryolite-bearing and rare metal-enriched rhyolite, Sierra Blanca Peaks, Hudspeth County, Texas
1131 Laser-interference and Nomarski interference imaging of zoning profiles in plagioclase phenocrysts from the May 18, 1980, eruption of Mount St. Helens, Washington
1144 Laser-interferometry study of oscillatory zoning in plagioclase: The record of magma mixing and phenocryst recycling in calc-alkaline magma chambers, Iztaccihuatl volcano, Mexico
1163 Complex stacking sequences in a lepidolite from Tørdal, Norway
1170 High-pressure differential thermal analysis (HP-DTA) of the dehydroxylation of Na-rich montmorillonite and K-exchanged montmorillonite
1176 Ashcroftine, ca. K10Na10(Y,Ca)24(OH)4(CO3)16(Si56O140)·16H2O, a structure with enormous polyanions
1190 High-resolution solid-state 27Al NMR spectroscopy of Mg-rich vesuvianite
1195 X-ray diffraction and 29Si magic-angle-spinning NMR of opals: Incoherent long- and short-range order in opal-CT
1204 Incorporation of Al, Mg, and water in opal-A: Evidence from speleothems
1211 Fibers and cylinders of cryptomelane-hollandite in Permian bedded salt, Palo Duro Basin, Texas
1225 Crystal structure of grischunite
1230 Crystal structures and crystal chemistry of the uranyl oxide hydrates becquerelite, billietite, and protasite
1239 Synthesis of metastable Ca-Mg carbonates
1241 Effects of temperature and degree of supersaturation on pyrite morphology
1251 Perroudite, a new sulfide-halide of Hg and Ag from Cap-Garonne, Var, France, and from Broken Hill, New South Wales, and Coppin Pool, Western Australia
1257 Crystal structure and crystal chemistry of perroudite: A mineral from Coppin Pool, Western Australia
1263 Quantitative analysis of REEs by SIMS
1269 Formal definitions of type mineral specimens
BOOK REVIEW
1279 BOOK REVIEWS
MEMORIAL
1271 Memorial of Ogden L. Tweto
1273 Memorial of Kenneth DePencier Watson
1275 Memorial of James Phemister
1277 Memorial of Takeo Watanabe
INDEX
1280 INDEX
TABLE OF CONTENTS
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SPECIAL COLLECTIONS
Table of Contents
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Special Collections
American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.