American Mineralogist
REGULAR ARTICLE
1127 Paradocrasite, Sb2(Sb,As)2, a new mineral
1147 The crystal structure of legrandite
1155 Crystal structures of the humite minerals: III. Mg /Fe ordering in humite and its relation to other ferromagnesian silicates
1174 The crystal structure of nasonite
1180 Antiphase domain structure of the intermediate composition plagioclase feldspars
1199 Optical properties of Adirondack anorthosite plagioclases
1208 Rate of Al-Si ordering in sanidines from an ignimbrite cooling unit
1222 Refinement of the crystal structure of apophyllite: I. X-ray diffraction and physical properties
1234 The refinement of the crystal structure of apophyllite: II. Determination of the hydrogen positions by X-ray diffraction
1243 Refinement of the crystal structure of apophyllite: III. Determination of the hydrogen positions by neutron diffraction
1252 Carbon from Ubangi – A microstructural study
1269 Solid solutions of the type (Ca, Mg, Mn, Fe)S and their use as geothermometers for the enstatite chondrites
1297 The intermediate product of pyrrhotite alteration
1303 Violarite stability relations
1312 Mackinawite from the sulfide ores of the Singhbhum copper belt, India
1319 Copper-nickel arsenides of the Mohawk No. 2 Mine, Mohawk Keweenaw Co., Michigan
1332 Phase relations in the system CaO-iron oxide-TiO2 in air
1347 Phase relations in the system CaO-iron oxide-titanium oxide under strongly reducing conditions
1359 Austinite: Chemical and physical properties in relation to conichalcite
1366 The problem of cation deficiencies in some phosphates due to alteration processes
1385 Chemical variability and structural heterogeneity of glauconites
1393 Influence of 10 Å/14 Å interlayering on the layer charge of glauconites
1399 Talc from central Gulf Coast Miocene sediments
1403 Authigenic feldspars in carbonate rocks
1443 Al2SiO5 minerals in rocks of the Sierra Nevada and Inyo Mountains, California
1452 Investigations of the LII,III X-ray emission spectra of Fe by electron microprobe: Part 2. The FeII,III spectra of Fe and Fe-Ti oxides
1469 Hematite to goethite surface weathering
1474 A pseudomorphic quartz-tourmaline relationship from northern Nigeria
1477 Choice of origin and its effect on calculated X-ray spacings for thin montmorillonite crystals
1481 X-ray line broadening in the barium sulfate-strontium sulfate series
1486 Pyrite of unusual habit simulating twinning from the Green River formation of Wyoming: correction
NEW MINERAL NAMES
1487 New Mineral Names
MINERALOGICAL NOTES
1464 MINERALOGICAL NOTES Reflectance and microhardness of smythite
NOTES
1498 Notices
BOOK REVIEW
1490 Book Reviews
PROCEEDINGS
1499 List of Officers and Committees
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.