American Mineralogist

Volume 65, Issue no. 1112 : November - December 1980

REGULAR ARTICLE

1075 Anthophyllite asbestos: microstructures, intergrown sheet silicates, and mechanisms of fiber formation

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1087 Contact-metamorphic effects of the Stillwater Complex, Montana: the concordant iron formation

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1103 The gedrite-anthophyllite solvus and the composition limits of orthoamphibole from the Post Pond Volcanics, Vermont

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1119 Axinite mineral group in low-grade regionally metamorphosed rocks in southern New Zealand

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1130 Takbuchiite, a new oxyborate mineral from Långban, Sweden

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1134 Preiswerkite, an Al-rich trioctahedral sodium mica from the Geisspfad ultramafic complex (Penninic Alps)

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1138 Okanoganite, a new rare-earth borofluorosilicate from the Golden Horn batholith, Okanogan County, Washington

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1143 Johnbaumite, a new member of the apatite group from Franklin, New Jersey

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1146 Ziesite, β-Cu2V2O7, a new copper vanadate and fumarole temperature indicator

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1150 The influence of TiO2 on the structure and derivative properties of silicate melts

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1166 The solubility behavior of CO2 in melts on the join NaAlSi3O8-CaAl2Si2O8-CO2 at high pressures and temperatures: a Raman spectroscopic study

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1176 Solubility mechanisms of water in basalt melt at high pressures and temperatures: NaCaAlSi2O7·H2O as a model

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1185 Cation vacancies and the crystal chemistry of breakdown reactions in kimberlitic omphacites

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1192 The high albite-monalbite and analbite-monalbite transitions

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1212 Lattice constants of wairakite as a function of chemical composition

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1217 The formation of pyrophyllite solid solutions

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1220 Oscillatory zoning of a discontinuous solid-solution series: sphalerite-stannite

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1233 Formation of synthetic fluid inclusions in natural quartz

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1237 Defect calculations in silicates: olivine

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1249 A microanalytical technique for determination of aluminum in aqueous solutions

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1252 The calcite-aragonite equilibrium: effects of Sr substitution and anion orientational disorder

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1263 The forsterite-tephroite series: I. Crystal structure refinements

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1270 The structure of nekoite, Ca3Si6O15·7H2O, a new type of sheet silicate

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1277 Cell dimensions, polymorph type, and infrared spectra of synthetic white micas: the importance of ordering

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1283 Pressure-induced phase transitions in tridymite

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1287 Ring crystals of osarizawaite from Whim Creek, Western Australia

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1291 Plotting stereoscopic phase diagrams

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1294 Computer synthesis of optical interference figures

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1302 Mineralogy and petrology of the Dutchmans Creek gabbroic intrusion, South Carolina: discussion

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1304 Mineralogy and petrology of the Dutchmans Creek gabbroic intrusion, South Carolina: reply

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NOTES

1307 NOTICES

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BOOK REVIEW

1307 BOOK REVIEWS

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ERRATA

1307 ERRATA

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INDEX

1312 INDEX

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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.