American Mineralogist

Volume 83, Issue no. 1112 : November - December 1998

LETTER

1353 Structure sensitivity of pyrite oxidation: Comparison of the (100) and (111) planes

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1357 Ultrasonic interferometry and X-ray measurements on MgO in a new diamond anvil cell

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1361 Fe3+ distribution in oxidized olivine: A synchrotron micro-XANES study

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AMMIAY 83(11-12)1141-1386 ISSN 0003-004X [83(11-12) is mailing in two parts]

1231 An investigation of the phase transitions in bornite (Cu5FeS4) using neutron diffraction and differential scanning calorimetry

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1240 Invisible gold: Comparison of Au deposition on pyrite and arsenopyrite

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1246 Thermal chemistry of H2S and H2O on the (100) plane of pyrite: Unique reactivity of defect sites

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1256 X-ray photoelectron spectroscopic study of a pristine millerite (NiS) surface and the effect of air and water oxidation

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1266 Study of the Al coordination in mullites with varying Al:Si ratio by 27Al NMR spectroscopy and X-ray diffraction

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1277 Cation dynamics and premelting in lithium metasilicate (Li2SiO3) and sodium metasilicate (Na2SiO3): A high-temperature NMR study

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1285 Shocked quartz: A 29Si magic-angle spinning nuclear magnetic resonance study

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1293 Prevalence and origin of birefringence in 48 garnets from the pyrope-almandine-grossularite-spessartine quaternary

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1302 The chemical composition of REE-Y-Th-U rich accessory minerals in peraluminous granites of the Erzgebirge-Fichtelgebirge region, Germany. Part II: Xenotime

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1316 Octahedral site Fe2+ quadrupole splitting distributions from the Mössbauer spectra of arrojadite

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1323 Haggertyite, a new magnetoplumbite-type titanate mineral from the Prairie Creek (Arkansas) lamproite

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1330 Scandiobabingtonite, a new mineral from the Baveno pegmatite, Piedmont, Italy

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1335 Rubicline, a new feldspar from San Piero in Campo, Elba, Italy

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1340 Hartite from Bílina

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GEOMICROBIOLOGY ARTICLES

1387 Magnetite from magnetotactic bacteria: Size distributions and twinning

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1399 Formation of Fe-silicates and Fe-oxides on bacterial surfaces in samples collected near hydrothermal vents on the Southern Explorer Ridge in the northeast Pacific Ocean

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1409 Formation of single-domain magnetite by a thermophilic bacterium

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1419 Alteration of microbially precipitated iron oxides and hydroxides

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1426 Bacterial reduction of crystalline Fe3+ oxides in single phase suspensions and subsurface materials

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1444 Microbial oxidation of pyrite: Experiments using microorganisms from an extreme acidic environment

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1454 Sulfur isotope variability in biogenic pyrite: Reflections of heterogeneous bacterial colonization?

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1469 Iron sulfides from magnetotactic bacteria: Structure, composition, and phase transitions

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1482 Formation of lithified micritic laminae in modern marine stromatolites (Bahamas): The role of sulfur cycling

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1494 Bioaccumulation of metals by lichens:Uptake of aqueous uranium by Peltigera membranacea as a function of time and pH

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1503 Production of carbonate sediments by a unicellular green alga

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1510 Primary structure of a soluble matrix protein of scallop shell: Implications for calcium carbonate biomineralization

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1516 Effects of microbial activity on the 18O of dissolved inorganic phosphate and textural features of synthetic apatites

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1532 Feldspars as a source of nutrients for microorganisms

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1541 Novel nano-organisms from Australian sandstones

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1551 Experimental observations of the effects of bacteria on aluminosilicate weathering

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1564 Manganite reduction by Shewanella putrefaciens MR-4

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1573 Involvement of genes of the two-step protein secretion pathway in the transport of the manganese-oxidizing factor across the outer membrane of Pseudomonas putida strain GB-1

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1583 Molecular phylogenetic analysis of a bacterial community in Sulphur River, Parker Cave, Kentucky

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1593 The double helix meets the crystal lattice: The power and pitfalls of nucleic acid approaches for biomineralogical investigations

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REGULAR ARTICLE

1141 Magmatic sulfur compounds and sulfur diffusion in albite melt at 1 GPa and 1300-1500 °C

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1152 Ruthenium solubility in hematite

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1161 Limits on the precision of geobarometry at low grossular and anorthite content

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1168 Complete substitution of Si for Ti in titanite Ca(Ti1-xSix)VISiIVO5

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1176 High-pressure P21/c-C2/c phase transitions in clinopyroxenes: Influence of cation size and electronic structure

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1182 The effect of pressure on the intercalation of an ordered kaolinite

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1188 Semiquantitative determination of trans-vacant and cis-vacant 2:1 layers in illites and illite-smectites by thermal analysis and X-ray diffraction

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1199 Characterization of neoformed illite from

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1209 Formation of secondary minerals and its effect on anorthite dissolution

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1220 Molecular dynamics simulations of molten CaAl2Si2O8: Dependence of structure and properties on pressure

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NEW MINERAL NAMES

419 Abstract

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1347 NEW MINERAL NAMES

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ERRATA

1367 ERRATA

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1369 ERRATA

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1377 ERRATA

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DEPOSIT ITEMS

1176 High-pressure P21/c-C2/c phase transitions in clinopyroxenes: Influence of cation size and electronic structure

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TABLE OF CONTENTS
&
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.