American Mineralogist
LETTER
1405 LETTER Observation of five-coordinated Al in pyrophyllite dehydroxylate by solid-state 27Al NMR spectroscopy at 14 T
REGULAR ARTICLE
1233 ARTICLES Mineralogy in two dimensions: Scanning tunneling microscopy of semiconducting minerals with implications for geochemical reactivity
1247 Temperature dependence of the speciation of water in rhyolitic melts and glasses
1258 Mineralogy of the La Posta pluton: Implications for the origin of zoned plutons in the eastern Peninsular Ranges batholith, southern and Baja California
1270 Barite-celestine intergrowths in Archean plutons: The product of oxidizing hydrothermal activity related to alkaline intrusions
1278 Mineralogy and petrology of an unusual osumilite + vanadium-rich pseudobrookite assemblage in an ejectum from the Vico Volcanic Complex (Latium, Italy)
1285 Semiconducting band gaps of three lead-antimony sulfosalts
1287 Compressibility of omphacite to 60 kbar: Role of vacancies
1293 X-ray powder-diffraction and infrared study of the hexagonal to orthorhombic phase transition in K-bearing cordierite
1300 Hydrogen in humite-group minerals: Structure-energy calculations
1307 Crystal-structure analysis of a birefringent andradite
1317 Chemistry of alkali-deficient schorls from two tourmaline-dumortierite deposits
1325 Stacking variations and nonstoichiometry in the bixbyite-braunite polysomatic mineral group
1337 Herschelite: Morphology and growth sectors
1343 Sverigeite, a structure containing planar NaO4 groups and chains of 3- and 4-membered beryllosilicate rings
1351 Crystal structure of wiserite
1355 Sclarite, a new mineral from Franklin, New Jersey, with essential octahedrally and tetrahedrally coordinated zinc: Description and structure refinement
1360 Norrishite, a new manganese mica, K(Mn3+2Li)Si4O12, from the Hoskins mine, New South Wales, Australia
1368 Chayesite, K(Mg,Fe2+)4Fe3+[Si12O30]: A new rock-forming silicate mineral of the osumilite group from the Moon Canyon (Utah) lamproite
1374 Wiserite, an occurrence at the Kombat mine in Namibia, and new data
1377 Mawbyite, a new arsenate of lead and iron related to tsumcorite and carminite, from Broken Hill, New South Wales
1382 Protoastrakhanite discredited
1383 A simple device for loading gases in high-pressure experiments
1385 Welding silver and silver alloy containers for high-temperature and high-pressure experiments
1386 Synthetic 10-Å and 7-Å phyllomanganates: Their structures as determined by EXAFS – Discussion
1390 FLINCOR: A microcomputer program for the reduction and investigation of fluid-inclusion data
NEW MINERAL NAMES
1399 NEW MINERAL NAMES
PROCEEDINGS
1413 PROCEEDINGS OF THE 1988 MSA ANNUAL MEETING Report of the Secretary for 1988
1420 LIST OF FORMER OFFICERS AND MEETING PLACES
1423 LIST OF 1989 OFFICERS AND COMMITTEES
MEMORIAL
1394 MEMORIALS Memorial of Werner Nowacki
1397 Memorial of Willard Lincoln Roberts
ERRATA
1412 ERRATA
INDEX
1425 INDEX
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.