American Mineralogist
REGULAR ARTICLE
951 Cowlesite a new Ca-zeolite
957 Foggite, CaAl(OH)2(H2O)[PO4]; goedkenite, (Sr,Ca)2Al(OH)[PO4]2; and samuelsonite, (Ca,Ba)Fe2+2Mn2+2Ca8Al2(OH)2[PO4]10: Three new species from the Palermo No. I pegmatite, North Groton, New Hampshire
965 Foggite, Ca(H2O)2[CaAl2(OH)4(PO4)2]: Its atomic arrangement and relationship to calcium Tschermak’s pyroxene
972 Excess Gibbs energy of microcline-low albite alkali feldspars at 800°C and 1 bar, based on fused alkali bromide ion exchange experiments
985 A thermodynamic study of the pseudobinary join muscovite-paragonite in the system KAlSi3O8-NaAlSi3O8-Al2O3-SiO2-H2O
994 The formula, structure, and chemical bonding of tetradymite, Bi14Te13S8, and the phase Bi14Te15S6
998 Studies of the sulfosalts of copper. IV. Structure and twinning of sinnerite, Cu6As4S9
1013 Idaite from the Skouriotissa massive sulfide orebody, Cyprus: Its composition and conditions of formation
1019 Structural investigations on scholzite
1023 Refinement of the margarite structure in subgroup symmetry
1030 Mica polytypism: Dissimilarities in the crystal structures of coexisting 1M and 2M1 biotite
1041 Cookeite with a perfect regular structure, formed by bauxite alteration
1047 The stability of intermediate chlorites of the clinochlore-daphnite series at 2 kbar PH2O
1063 Nontronite topotaxial after hedenbergite
1069 Amphiboles in andesite and basalt: I. Stability as a function of P-Tfo2
1086 Mineralogy of lunar norite 78235; second lunar occurrence of P21ca pyroxene from Apollo 17 soils
1092 High temperature crystal chemistry of fayalite
1098 The crystal structure of braunite with reference to its solid-solution behavior
1105 Feldspathic geodes near Black Mountain, western San Luis Obispo County, California
1113 Indicatrix orientation for barium feldspars referred to crystallographic axes by computer using X-ray and extinction data
1122 The magnetic circular dichroism of pyrope-almandine garnets
1125 Infrared spectra of the solid solution between uvarovite and spessartine
1127 Effects of preferred orientation on X-ray diffraction patterns of gypsum
1130 Huntite from Deer Park, Victoria, Australia
1132 A macrocrystalline attapulgite-palygorskite occurrence in calcite veins: Editor’s note
MINERALOGICAL NOTES
1118 MINERALOGICAL NOTES Fiber-containing and crystal-lined basaltic vesicles: Possible lunar analogs
NOTES
1146 NOTICES
BOOK REVIEW
1132 BOOK REVIEWS
INDEX
1133 INDEX TO VOLUME 60
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American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.