American Mineralogist
REGULAR ARTICLE
1 The Fe2+3(H2O)n(PO4)2 homologous series: Crystal-chemical relationships and oxidized equivalents
18 Refinement of the crystal structure of cryolithionite, {Na3}[Al2](Li3)F12
24 The crystal structure of topaz and its relation to physical properties
31 An electron microprobe study of luminescence centers in cassiterite
46 Infrared characterization of water and hydroxyl ion in the basic magnesium carbonate minerals
54 Vibrational spectra of the common silicates: I. The garnets
72 Optical spectra of chromium, nickel, and cobalt-containing pyroxenes
90 Mössbauer and infrared study of a volcanic amphibole
101 A neutron diffraction study of the ferric tourmaline buergerite
114 Texture variations in color-zoned tourmaline crystals
133 Pyrite of unusual habit simulating twinning from the Green River formation of Wyoming
146 Chromite and ilmenite in non-chondritic meteorites
158 Skeletal crystallization of pseudobrookite
163 Comparison of mourite from Karnes County, Texas, with mourite from the U.S.S.R.
174 New data on galeite and schairerite
179 Conditions governing the formation of atacamite and paratacamite
193 The crystal structure of kinoite
201 The intracrystalline cation distribution and the thermodynamics of solid solution formation in the system FeSiO3-MgSiO3
212 Four coexisting amphiboles from Telemark, Norway
225 Stable and metastable augite crystallization trends in a single basalt flow
234 Diopside and actinolite from skarn, Clearwater County, Idaho
240 Structural and textural relationships of amphibole and phlogopite in peridotite inclusions, Dish Hill, California
256 Stability and physical properties of synthetic lithium-iron micas
281 Disordered authigenic feldspars of the series KAlSi3O8-KBSi3O8 from southern California
292 The free energy of sodalite and the behavior of chloride, fluoride, and sulfate in silicate magmas
307 Chevkinite and perrierite: Synthesis, crystal growth, and polymorphism
320 Hexachloro-1,3-butadiene—A meteorite etch and density-measuring medium
327 Position of isochromes in interference figures
336 On the electrochemical origin of natural graphite
338 Subsolidus phase relations in the system calcium carbonate-cadmium carbonate
342 Mg- and Na-bearing muscovite in the crystalline schist from Amakusa, Nagasaki Prefecture, Japan
344 On the optical spectra of di- and trivalent iron in corundum: A discussion
349 On the optical spectra of di- and trivalent iron in corundum: Reply
351 American Crystallographic Association; Ottawa meeting, August 20, 1970; Session on Mineralogical Crystallography
NEW MINERAL NAMES
358 New Mineral Names
MINERALOGICAL NOTES
333 MINERALOGICAL NOTES Formation of lonsdaleite from single-crystal graphite
NOTES
365 Notices
BOOK REVIEW
363 Book Reviews
PROCEEDINGS
373 List of Officers and Committees
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.