American Mineralogist
REGULAR ARTICLE
405 Cavansite and pentagonite, new dimorphous calcium vanadium silicate minerals from Oregon
412 The crystal structures of cavansite and pentagonite
425 Composition variation and polymorphism of tetrahedrite in the Cu-Sb-S system below 400°C
435 The crystal structure of parkerite (Ni3Bi2S2)
440 Application of Ro and At measurements to the study of pyrrhotite and troilite
444 The polarized spectra of iron in silicates. I. Enstatite
451 The polarized spectra of iron in silicates. II. Olivine
457 High-temperature activity-composition relations of equilibrium spinels, olivines, and pyroxenes in the system Mg-Fe-O-SiO2
466 The crystal structure of latiumite, a new type of sheet silicate
471 Hydroxyl orientation in kaolinite, dickite, and nacrite
480 A crystal-chemical study of synthetic magnesiohastingsite
495 Tetrahedral bond length variations in anorthite
500 Neutron diffraction refinement of an ordered orthoclase structure
508 Water content of some nominally anhydrous silicates
517 New locality, formula, and proposed structure for reyerite
523 The crystal structure of tincalconite
531 A reexamination of minasragrite
535 Crystal structures and mineral chemistry of hydrated ferric sulphates. III. The crystal structure of kornelite
543 Etching of pyroxenes and their exsolution lamellae
545 Yttrialite and uraninite, additional minerals from the Rode Ranch pegmatite, Central Mineral Region, Texas
548 Thermal decomposition of dawsonite
551 Refinement of the callaghanite structure
552 Crystal data and formula for hydrous tin (II) oxide: A note
553 The preparation of oriented clay mineral specimens for X-ray diffraction analysis by a filter-membrane peel technique
555 Compositions of natural silfimanites from volcanic inclusions and metamorphic rocks: A discussion
558 Compositions of natural sillimanites from volcanic inclusions and metamorphic rocks: A reply
573 CONSTITUTION OF THE MINERALOGICAL SOCIETY OF AMERICA LIST OF OFFICERS AND COMMITTEES
NEW MINERAL NAMES
560 NEW MINERAL NAMES
MINERALOGICAL NOTES
540 MINERALOGICAL NOTES Speculation on an order-disorder transformation in omphacite
NOTES
570 NOTICES
BOOK REVIEW
563 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.