American Mineralogist
LETTER
1453
The effect of fictive temperature on Al coordination in high-pressure (10 GPa) sodium aluminosilicate glasses
Jeffrey R. Allwardt, Brent T. Poe, and Jonathan F. Stebbins
1458
α-PbO2-type nanophase of TiO2 from coesite-bearing eclogite in the Dabie Mountains, China
Xiuling Wu, Dawei Meng, and Yujing Han
1462
Morphological characteristics of ordered kaolinite: Investigation using electron back-scattered diffraction
Jun Kameda, Akihiko Yamagishi, and Toshihiro Kogure
REGULAR ARTICLE
1233
Crystal-size and shape distributions of magnetite from uncultured magnetotactic bacteria as a potential biomarker
Balázs Arató, Zoltán Szányi, Christine Flies, Dirk Schüler, Richard B. Frankel, Peter R. Buseck, and Mihály Pósfai
1241
Tourmaline-bearing rocks in the Singhbhum shear zone, eastern India: Evidence of boron infiltration during regional metamorphism
Nandini Sengupta, Dhruba Mukhopadhyay, Pulak Sengupta, and Radegund Hoffbauer
1256
High-resolution transmission electron microscopy (HRTEM) study of the 4a and 6a superstructure of bornite Cu5FeS4
Yang Ding, David R. Veblen, and Charles T. Prewitt
1265
Possible Fe/Cu ordering schemes in the 2a superstructure of bornite (Cu5FeS4)
Yang Ding, David R. Veblen, and Charles T. Prewitt
1270
TEM-specimen preparation of cell/mineral interfaces by Focused Ion Beam milling
Martin Obst, Philippe Gasser, Denis Mavrocordatos, and Maria Dittrich
1278
Direct observation of spinodal decomposition in the magnetite-hercynite system by susceptibility measurements and transmission electron microscopy
Ute Golla-Schindler, Hugh St.C. O’Neill, and Andrew Putnis
1284
Thermodynamics of uranyl minerals: Enthalpies of formation of rutherfordine, UO2CO3, andersonite, Na2CaUO2(CO3)3(H2O)5, and grimselite, K3NaUO2(CO3)3H2O
Karrie-Ann Kubatko, Katheryn B. Helean, Alexandra Navrotsky, and Peter C. Burns
1291
Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution: A single-crystal X-ray diffraction study
Serena C. Tarantino and Michele Zema
1301
Structure change of MgSiO3, MgGeO3, and MgTiO3 ilmenites under compression
T. Yamanaka, Y. Komatsu, M. Sugahara, and T. Nagai
1308
Dehydration processes in the meta-autunite group minerals meta-autunite, metasaléeite, and metatorbernite
Yohey Suzuki, Tsutomu Sato, Hiroshi Isobe, Toshihiro Kogure, and Takashi Murakami
1315
Investigation of the martensitic-like transformation from Mg2GeO4 olivine to its spinel structure polymorph
Pamela C. Burnley
1325
A high-temperature diffraction study of the solid solution CaTiOSiO4-CaTiOGeO4
Rikke Ellemann-Olesen and Thomas Malcherek
1335
The vibrational spectrum of synthetic hydrogrossular (katoite) Ca3Al2(O4H4)3: A lowtemperature IR and Raman spectroscopic study
Boris A. Kolesov and Charles A. Geiger
1342
Structural characterization of biogenic Mn oxides produced in seawater by the marine bacillus sp. strain SG-1
S.M. Webb, B.M. Tebo, and J.R. Bargar
1358
Investigation of smectite hydration properties by modeling experimental X-ray diffraction patterns: Part I. Montmorillonite hydration properties
Eric Ferrage, Bruno Lanson, Boris A. Sakharov, and Victor A. Drits
1375
Synthesis and crystal-chemistry of alkali amphiboles in the system Na2O-MgO-FeOFe2O3-SiO2-H2O as a function of
Giancarlo Della Ventura, Gianluca Iezzi, Günther J. Redhammer, Frank C. Hawthorne, Bruno Scaillet, and Daniela Novembre
1384
Compositional zoning in sphalerite crystals
Francesco Di Benedetto, Gian Piero Bernardini, Pilar Costagliola, David Plant, and David J. Vaughan
1393
Structure and the extent of disorder in quaternary (Ca-Mg and Ca-Na) aluminosilicate glasses and melts
Sung Keun Lee, George D. Cody, and Bjorn O. Mysen
1402
Makarochkinite, Ca2Fe2+4Fe3+TiSi4BeAlO20, a new beryllosilicate member of the aenigmatite-sapphirine-surinamite group from the Il’men Mountains (southern Urals), Russia
Edward S. Grew, Jacques Barbier, Jim Britten, Martin G. Yates, Vladislav O. Polyakov, Elena P. Shcherbakova, Ulf HÃ¥lenius, and Charles K. Shearer
1413
Formation of lava stalactites in the master tube of the 1792—1793 flow field, Mt. Etna (Italy)
R.A. Corsaro, S. Calvari, and M. Pompilio
1422
Crystal-size distributions of garnets in metapelites from the northeastern Bushveld contact aureole, South Africa
Yasunari Kaneko, Toshiaki Tsunogae, and Takashi Miyano
1434
Early diagenetic origin of Al phosphate-sulfate minerals (woodhouseite and crandallite series) in terrestrial sandstones, Nova Scotia, Canada
Georgia Pe-Piper and Lila M. Dolansky
1442
Scandium silicates from the Baveno and Cuasso al Monte NYF-granites, Southern Alps (Italy): Mineralogy and genetic inferences
F. Pezzotta, V. Diella, and A. Guastoni
NEW MINERAL NAMES
1466
NEW MINERAL NAMES
Paula C. Piilonen, and T. Scott Ercit
DEPOSIT ITEMS
1325
A high-temperature diffraction study of the solid solution CaTiOSiO4-CaTiOGeO4
Rikke Ellemann-Olesen and Thomas Malcherek
Table 4. Atomic positional parameters and isotropic thermal vibration parameters and Table 8. Lattice constants and volume for all intermediate samples as a function of temperature
AM-05-021.zip zipped
1402
Makarochkinite, Ca2Fe2+4Fe3+TiSi4BeAlO20, a new beryllosilicate member of the aenigmatite-sapphirine-surinamite group from the Il’men Mountains (southern Urals), Russia
Edward S. Grew, Jacques Barbier, Jim Britten, Martin G. Yates, Vladislav O. Polyakov, Elena P. Shcherbakova, Ulf HÃ¥lenius, and Charles K. Shearer
Appendix 1. Associated Minerals (4 tables), Appendix 2-3. Reflectance and X-Ray diffraction and Appendix 4. Single crystal X-ray diffraction data for makarochkinite
AM-05-020.zip zipped
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.