American Mineralogist
Open AccessLETTER
428
Luminescence study of defects in synthetic as-grown and HPHT diamonds compared to natural diamonds
Joachim Lindblom, Jorma Hölsä, Heikki Papunen, and Heikki Häkkänen
441
Molar absorptivities of OH and H2O in rhyolitic glass at room temperature and at 400-600 °C
Satoshi Okumura and Satoru Nakashima
463
Oxygen isotope heterogeneities and diffusion profile in composite metamorphic-magmatic garnets from the Pyrenees
Daniel Vielzeuf, Michèle Veschambre, and Fabrice Brunet
497
A method for controlling alkali-metal oxide activities in one-atmosphere experiments and its application to measuring the relative activity coefficients of NaO0.5 in silicate melts
Hugh St. C. O’Neill
502
Very low solubility of rutile in H2O at high pressure and temperature, and its implications for Ti-mobility in subduction zones
Peter Tropper and Craig E. Manning
506
Microscopic strain in synthetic pyrope-grossular solid solutions determined by synchrotron X-ray powder diffraction at 5 K: The relationship to enthalpy of mixing behavior
Monica Dapiaggi, Charles A. Geiger, and Gilberto Artioli
510
Ferrous hydroxy carbonate is a stable transformation product of biogenic magnetite
Ravi K. Kukkadapu, John M. Zachara, James K. Fredrickson, David W. Kennedy, Alice C. Dohnalkova, and David E. McCready
REVIEW ARTICLE
277
Comparative planetary mineralogy: Valence state partitioning of Cr, Fe, Ti, and V among crystallographic sites in olivine, pyroxene, and spinel from planetary basalts
J.J. Papike, J.M. Karner, and C.K. Shearer
REGULAR ARTICLE
291
The origin of orthopyroxene/biotite + plagioclase coronas from the Bolangir anorthosite complex (India), and implications for reconstructing P-T paths
Sonika Prasad, A. Bhattacharya, M.M. Raith, and S. Bhadra
304
Dellaventuraite, NaNa2(MgMn3+2Ti4+Li)Si8O22O2, a new anhydrous amphibole from the Kajlidongri Manganese Mine, Jhabua District, Madhya Pradesh, India
Kimberly T. Tait, Frank C. Hawthorne, Joel D. Grice, Luisa Ottolini, and V.K. Nayak
310
Successive zoning of Al and H in hydrothermal vein quartz
Naoya Miyoshi, Yoshiaki Yamaguchi, and Kuniaki Makino
316
The Ti-saturation surface for low-to-medium pressure metapelitic biotites: Implications for geothermometry and Ti-substitution mechanisms
Darrell J. Henry, Charles V. Guidotti, and Jennifer A. Thomson
329
Thermochemistry of hydrotalcite-like phases in the MgO-Al2O3-CO2-H2O system: A determination of enthalpy, entropy, and free energy
Rama kumar Allada, Alexandra Navrotsky, and Juliana Boerio-Goates
336
Igneous thermometers and barometers based on plagioclase + liquid equilibria: Tests of some existing models and new calibrations
Keith D. Putirka
347
Thermodynamic properties of the Tschermak solid solution in Fe-chlorite: Application to natural examples and possible role of oxidation
Olivier Vidal, Teddy Parra, and Philippe Vieillard
359
Experimental data on the Tschermak substitution in Fe-chlorite
Teddy Parra, Olivier Vidal, and Thomas Theye
371
Nanometer-sized, divalent-Mn, hydrous silicate domains in geothermal brine precipitates
Alain Manceau and Darrell L. Gallup
382
Geometric crystal chemical models for structural analysis of micas and their stacking polytypes
Patrick H.J. Mercier, R. James Evans, and Denis G. Rancourt
399
Fundamental difference between synthetic powder and natural or synthetic single-crystal 1M micas: Geometric homo-octahedral vs. geometric meso-octahedral sheets
Patrick H.J. Mercier, Denis G. Rancourt, Jean-Louis Robert, Rob G. Berman, and Guenther J. Redhammer
411
The crystal structures of synthetic Fe2(SO4)3(H2O)5 and the type specimen of lausenite
Juraj Majzlan, Cristian Botez, and Peter W. Stephens
417
Experimental study of plagioclase rim growth around anorthite seed crystals in rhyodacitic melt
Jessica F. Larsen
448
Ordering and elasticity associated with low-temperature phase transitions in lawsonite
P. Sondergeld, W. Schranz, A. Tr??ster, T. Armbruster, G. Giester, A. Kityk, and M.A. Carpenter
457
Formation of metastable cubic-perovskite in high-pressure phase transformation of Ca(Mg, Fe, Al)Si2O6
Yuki Asahara, Eiji Ohtani, Tadashi Kondo, Tomoaki Kubo, Nobuyoshi Miyajima, Toshiro Nagase, Kiyoshi Fujino, Takehiko Yagi, and Takumi Kikegawa
473
Unmixed spinel in chromitite from the Iwanai-dake peridotite complex, Hokkaido, Japan: A reaction between peridotite and highly oxidized magma in the mantle wedge
Akihiro Tamura and Shoji Arai
481
Mn-bearing oxy-rossmanite with tetrahedrally coordinated Al and B from Austria: Structure, chemistry, and infrared and optical spectroscopic study
Andreas Ertl, George R. Rossman, John M. Hughes, Stefan Prowatke, and Thomas Ludwig
488
Geochemical applications of the simple salt approximation to the lattice energies of complex materials
Claude H. Yoder and Natalie J. Flora
516
Named Amphiboles: A new category of amphiboles recognized by the International Mineralogical Association (IMA) and a defined sequence order for the use of prefixes in amphibole names
Ernst A.J. Burke and Bernard E. Leake
NEW MINERAL NAMES
518
NEW MINERAL NAMES
John L. Jambor, Edward S. Grew, and Andrew C. Roberts
REVIEWERS
523
REVIEWERS 2004
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.