American Mineralogist
REGULAR ARTICLE
831 Buddingtonite, an ammonium feldspar with zeolitic water
851 Ammonium in alkali feldspars
859 Surface tension and the morphology of halloysite
867 On errors of reflectivity measurements and of calculations of refractive index n and absorption coefficient k
883 Clinopyroxenes from eclogites and basic granulites
889 Silicate sample preparation for light-element analyses by x-ray spectrography
904 Coexistent muscovite and paragonite in pelitic schists
926 Transformation of trilinear and quadriplanar coordinates to and from cartesian coordinates
937 A thorian intermediate member of the britholite-apatite series
952 Tridymite-cristobalite relations and stable solid solutions
963 Cummingtonite-grunerite series: A chemical, optical and x-ray study
983 X-ray identification of ordered and disordered ortho-enstatite
993 Iron-rich serpentine and chamosite from Ely, Minnesota
1002 Infrared spectra of phosphate minerals: Symmetry and substitutional effects in the pyromorphite series
1016 Phase equilibria in the system FeO-Fe2O3-TiO2 at 1300° C
1031 Celadonite: Synthesis, thermal stability and occurrence
1084 Sulfur-rich bornites
1099 Some zeolite equilibria with alkaline earth metal cations
1114 Quartz glass pressure vessels for hydrothermal studies
1122 Investigations of landesite
1125 Optical extinction of anorthite at high temperatures
1131 Combined rock and thin section modal analysis
1136 Pseudomorphs of anatase after sphene from Roanoke County, Virginia
1139 A note on the lattice parameters of nepheline hydrate I
1142 Synthesis of MBa(CO3)2 compounds
1143 A new occurrence of langite
1146 X-ray investigation of zircon crystals containing OH groups
1149 Sarcopside from Deering and East Alstead, New Hampshire
NEW MINERAL NAMES
1151 New Mineral Names
MINERALOGICAL NOTES
1111 MINERALOGICAL NOTES: Thermal stability of azurite and malachite
NOTES
1119 Notes on some Black Hills phosphates
1157 Notices
BOOK REVIEW
1155 Book Reviews
TABLE OF CONTENTS
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SPECIAL COLLECTIONS
Table of Contents
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Special Collections
American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.