American Mineralogist
REGULAR ARTICLE
1083 Kutinaite; a new copper-silver arsenide mineral from Cerny Dul, Czechoslovakia
1088 Hemihedrite, a new mineral from Arizona
1103 The crystal structure of hemihedrite
1115 Chalcogenides of the transition elements. VII. A Mössbauer study of pentlandite
1131 Crystal chemistry and color in apatites containing cobalt, nickel, and rare-earth ions
1146 Edge-sharing silicate tetrahedra in the crystal structure of leucophoenicite
1167 The crystal structure of nordite and its relationship to melilite and datolite-gadolinite
1182 The crystal structures of the humite minerals. II. Chondrodite
1195 Refinement of the crystal structure of pigeonite
1210 Two-step mechanism for order-disorder kinetics in silicates
1219 Order-disorder and the activity-composition relation in a binary crystalline solution. I. Metamorphic orthopyroxene
1226 Mössbauer, infrared, X-ray and optical study of cation ordering and dehydrogenation in natural and heat-treated sodic amphiboles
1259 Monoclinic and triclinic forms of pyrophyllite and pyrophyllite anhydride
1273 Transitional-primitive boundary in calcic plagioclase
1278 The crystal chemistry of chabazites
1302 Slip structure of heated sphalerite
1313 Shock-effects in scapolite
1329 Dehydroxylation heat of alunite
1338 Alpha-arsenic sulfide, from Mina Alacran, Pampa Larga, Chile
1345 “””Cuproscheelite”” from the Copiapó mining district, northern Chile”
1353 A chlorine-rich biotite from Kondapalli, Andhra Pradesh, India
1359 Epigenetic chlorite crystals in faulted Lower Devonian mudstones Kingston, New York
1374 Pyrope in kimberlite
1380 A chemical model for the origin of gibbsite from kaolinite
1390 The origin of some antiperthites – a model based on nucleation
1396 Cavity minerals at Summit Rock, Oregon
1405 Refractive index determination by orientation variation. I. Uniaxial crystals
1416 A device for the transfer of an optically oriented mineral fragment to a single crystal X-ray goniometer head
1424 An electrochemical method of oxygen fugacity control of furnace atmosphere for mineral syntheses
1435 Lead ions and empty halide sites in apatites
1437 “Colloform hydrothermal muscovite (“”chacaltaite””)”
1440 A convenient nonoxidizing heating method for metamict minerals
NEW MINERAL NAMES
1444 New Mineral Names
MINERALOGICAL NOTES
1432 MINERALOGICAL NOTES Cleavage surface energy of phlogopite mica
NOTES
1454 Notices
BOOK REVIEW
1450 Book Reviews
PROCEEDINGS
1455 List of Officers and Committees
ERRATA
1440 Errata: Index to Volume 41-50, addition to list of corrections
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.