American Mineralogist
INSTRUCTIONS TO AUTHORS
222 INSTRUCTIONS TO AUTHORS
REGULAR ARTICLE
1 High resolution electron microscopy of silicates
22 Amphibole pairs, epidote minerals, chlorite, and plagioclase in metamorphic rocks, northern Sierra Nevada, California
41 The crystal structure of crandallite
48 I. Jahnsite, segelerite, and robertsite, three new transition metal phosphate species. II. Redefinition of overite, an isotype of segelerite. III. Isotypy of robertsite, mitridatite, and arseniosiderite
60 Roweite, Ca2Mn2+2(OH)4 [B4O7(OH)2]: Its atomic arrangement
66 Roweite from Franklin, New Jersey: A restudy
71 The crystal structure of bikitaite, Li[AlSi2O6]·H2O
79 The crystal structure of danburite: A comparison with anorthite, albite, and reedmergnerite
86 Howieite, a new type of chain silicate
98 The diopside-orthoenstatite two-phase region in the system CaMgSi2O6-Mg2Si2O6
110 The system MgO-Al2O3-SiO2: Solubility of Al2O3 in enstatite for spinel and garnet peridotite compositions
120 Pyroxene crystallization trends and contrasting augite zoning in the Sudbury Nickel Irruptive
127 Sector-zoned titanaugites: Morphology, crystal chemistry, and growth
139 Phase transformation and development of hourglass pattern in synthetic barium feldspar
143 Mössbauer studies of natural biotites
152 Development of long basal spacings in chlorites by thermal treatment
159 Chromium III centers in synthetic alexandrite
166 On studtite and its composition
172 Murataite, a new complex oxide from El Paso County, Colorado
177 A spectrographic interpretation of the shock-produced color change in rhodonite (MnSiO3): The shock-induced reduction of Mn(III) to Mn(II)
183 A technique of sample preparation for petrographic investigation by electron microscopy
190 “Selected area electron diffraction study of a type II “”valleriite-like”” mineral”
204 Activity coefficients of coexisting pyroxenes
206 Genesis of hypogene psilomelane fibers from the Tower Mine Area, New Mexico
NEW MINERAL NAMES
208 NEW MINERAL NAMES
MINERALOGICAL NOTES
201 MINERALOGICAL NOTES The role of crystal structure in controlling the partitioning of Mg and Fe2+ between coexisting garnet and biotite
NOTES
219 NOTICES
BOOK REVIEW
213 BOOK REVIEWS
PROCEEDINGS
228 LIST OF OFFICERS AND COMMITTEES
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.