American Mineralogist
REGULAR ARTICLE
543 Greigite, the thio-spinel of iron; a new mineral
556 Occurrence of regularly interstratified chlorite-vermiculite as a weathering product of chlorite in a soil
573 Phase equilibrium relations in the system CaMgSi2O6(diopside) – NaAlSiO4(nepheline) – NaAlSi3O8(albite) – H2O at 1,000 kg/cm2 water vapor pressure
586 Glauconites; cation exchange capacities and infrared spectra; Part I, The cation exchange capacity of glauconite
599 Use of the angle A1^c in optical determination of the composition of augite
607 Mineral equilibrium studies of the pseudomorphism of pyromorphite by hinsdalite
614 Optical-crystallographic scatter in plagioclase
634 Biotite mica effect in x-ray spectrographic analysis of pressed rock powders
644 Goldmanite, a vanadium garnet from Laguna, New Mexico
656 Zeolite studies IV: Na-P zeolites and the ion exchanged derivatives of tetragonal Na-P
683 Immersion liquids of relatively strong dispersion in the low refractive index range (1.46 to 1.52)
689 Stable mineral assemblages of anhydrous copper and iron oxides
697 On the cation and water positions in faujasite
705 Reduction of orientation effects in quantitative x-ray diffraction analysis of kaolin minerals
715 The alkali feldspars of the Tatoosh pluton in Mount Rainier National Park
736 Correlations between infrared spectrum and chemical composition of mica
769 The direct spectrophotometric microdetermination of high-level magnesium in silicate minerals. A Clayton yellow procedure
781 Additional notes on margarosanite
782 The thorite-huttonite phase transformation as determined by growth of synthetic thorite and huttonite single crystals
785 A distinction between natural and synthetic emeralds
792 “Re-examination of “”struverite””–a further note”
794 On the origin of anomalous etch pits in minerals
800 Electropolishing of pyrite
806 Growth of forsterite crystals in a reactive crucible
808 On Mertie’s analytic classification and quadriplanar charting of analyses with nine or more components
812 “Comment on “”Errors in the measurement of 2V with the universal stage,”” by M. Munro”
813 “Reply to “”Comment on ‘Errors in the measurement of 2V with the universal stage'”””
NEW MINERAL NAMES
816 New Mineral Names
MINERALOGICAL NOTES
778 MINERALOGICAL NOTES: Lazurite, talc and chlorite in the Green River formation of Wyoming
NOTES
805 Note on the revised composition of two olivines from the Skaergaard intrusion, East Greenland
828 Notices
BOOK REVIEW
822 Book Reviews
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.