American Mineralogist
MSA PRESIDENTIAL ADDRESS
685 PRESIDENTIAL ADDRESS Crystalline solution series and order-disorder within the natrolite mineral group
LETTER
890 LETTERS High-temperature behavior of metastable MgSiO3 perovskite: A Raman spectroscopic study
REGULAR ARTICLE
704 ARTICLES Investigation of cation order in MgSiO3-rich garnet using 29Si and 27Al MAS NMR spectroscopy
713 Structural investigation of pyrope garnet using temperature-dependent FTIR and 29Si and 27Al MAS NMR spectroscopy
718 Influence of octahedral polymerization on 23Na and 27Al MAS NMR in alkali fluoroaluminates
725 The temperature dependence of the cation distribution in magnesioferrite (MgFe2O4) from powder XRD structural refinements and Mössbauer spectroscopy
741 Bonded and promolecule radii for molecules and crystals
751 Variations of bond lengths and volumes of silicate tetrahedra with temperature
758 Cylindrite: The relation between its cylindrical shape and modulated structure
765 Solution properties of almandine-pyrope garnet as determined by phase equilibrium experiments
774 Experimental investigation of Fe-Mg distribution between olivine and clinopyroxene: Implications for mixing properties of Fe-Mg in clinopyroxene and garnet-clinopyroxene thermometry
784 Experimental investigation of melts from a carbonated phlogopite lherzolite: Implications for metasomatism in the continental lithospheric mantle
795 Textural evidence of mafic-felsic magma interaction in dacite lavas, Clear Lake, California
810 Preliminary petrogenetic grids for sodium and calcium zirconosilicate minerals in felsic peralkaline rocks: The SiO2-Na2ZrO3 and SiO2-CaZrO3 pseudobinary systems
821 Evolution of magmatic and subsolidus AFM mineral assemblages in granitoid rocks: Biotite, muscovite, and garnet in the Cuffytown Creek pluton, South Carolina
834 Crystal structure, H positions, and the Se lone pair of synthetic chalcomenite, Cu(H2O)2[SeO3]
839 Eglestonite, [Hg2]3Cl3O2H: Confirmation of the chemical formula by neutron powder diffraction
843 Parafransoletite, a new dimorph of fransoletite from the Tip Top Pegmatite, Custer, South Dakota
848 Beryllophosphate chains in the structures of fransoletite, parafransoletite, and ehrleite and some general comments on beryllophosphate linkages
857 Origin of alunite- and jarosite-group minerals in the Mt. Leyshon epithermal gold deposit, northeast Queensland, Australia-Discussion
860 Origin of alunite- and jarosite-group minerals in the Mt. Leyshon epithermal gold deposit, northeast Queensland, Australia-Reply
865 Acceptance of the Roebling Medal of the Mineralogical Society of America for 1991
869 Acceptance of the Mineralogical Society of America Award for 1991
872 Acceptance of the Distinguished Public Service Medal for 1991
894 Mössbauer spectra of 57Fe0.05Mg0.95SiO3 perovskite at 80 and 298 K
898 Al coordination in magnesium aluminosilicate glasses
AWARD
863 PRESENTATION OF AWARDS FOR 1991 Presentation of the Roebling Medal of the Mineralogical Society of America for 1991 to E-an Zen
867 Presentation of the Mineralogical Society of America Award for 1991 to Mark D. Barton
870 Presentation of the Distinguished Public Service Medal for 1991 to H. Catherine W. Skinner
BOOK REVIEW
889 BOOK REVIEW
PROCEEDINGS
874 PROCEEDINGS OF THE 1991 MSA ANNUAL MEETING Report of the Secretary for 1991
MEMORIAL
886 MEMORIAL Memorial of Arnulf Muan, 1923-1990
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.