American Mineralogist
LETTER
225
Synthesis and crystal structure of Li0.52Mg0.96Sc0.52Si2O6 orthopyroxene
Hexiong Yang and Robert T. Downs
229
Thermochemistry and high-pressure equilibria of the post-perovskite phase transition in CaIrO3
Hiroshi Kojitani, Asuka Furukawa, and Masaki Akaogi
REGULAR ARTICLE
1
Mid-infrared emission spectroscopy of sulfate and sulfate-bearing minerals
Melissa D. Lane
19
An experimental study of the replacement of leucite by analcime
Christine V. Putnis, Thorsten Geisler, Peter Schmid-Beurmann, Thomas Stephan, and Ciriaco Giampaolo
27
Structural refinement and crystal chemistry of Mn-doped spinel: A case for tetrahedrally coordinated Mn3+ in an oxygen-based structure
Ferdinando Bosi, Ulf Hålenius, Giovanni B. Andreozzi, Henrik Skogby, and Sergio Lucchesi
34
27Al and 23Na NMR spectroscopy and structural modeling of aluminofluoride minerals
Bing Zhou, Barbara L. Sherriff, J. Stephen Hartman, and Gang Wu
44
Speciation of Fe in silicate glasses and melts by in-situ XANES spectroscopy
Max Wilke, François Farges, Georg M. Partzsch, Christian Schmidt, and Harald Behrens
57
First in situ X-ray identification of coesite and retrograde quartz on a glass thin section of an ultrahigh-pressure metamorphic rock and their crystal structure details
Daijo Ikuta, Naoyuki Kawame, Shohei Banno, Takao Hirajima, Kazuhiko Ito, John F. Rakovan, Robert T. Downs, and Osamu Tamada
64
High-resolution transmission electron microscopy (HRTEM) investigation of antigorite polysomes (m = 15 to 18)
Gian Carlo Capitani and Marcello Mellini
72
Manganese valence imaging in Mn minerals at the nanoscale using STEM-EELS
Diana B. Loomer, Tom A. Al, Louise Weaver, and Steven Cogswell
80
The crystal chemistry of welshite, a non-centrosymmetric (P1) aenigmatite-sapphirinesurinamite group mineral
Edward S. Grew, Jacques Barbier, Jim Britten, Ulf Hålenius, and Charles K. Shearer
91
Synchrotron powder X-ray diffraction study of the structure and dehydration behavior of sepiolite
Jeffrey E. Post, David L. Bish, and Peter J. Heaney
98
Ab-initio thermal physics and Cr-isotopic fractionation of MgCr2O4
Giulio Ottonello, Bartolomeo Civalleri, Marino Vetuschi Zuccolini, and Claudio Marcelo Zicovich-Wilson
109
Single-crystal elastic properties of Ca0.07Mg1.93Si2O6 orthopyroxene
Jean-Philippe Perrillat, Fabrizio Nestola, Stanislav V. Sinogeikin, and Jay D. Bass
114
The density and compressibility of KAlSi3O8 liquid to 6.5 GPa
Rebecca A. Lange
124
An evaluation of synthetic fluid inclusions for the purpose of trapping equilibrated, coexisting, immiscible fluid phases at magmatic conditions
Adam C. Simon, Mark R. Frank, Thomas Pettke, Philip A. Candela, Philip M. Piccoli, Christoph A. Heinrich, and Michael Glascock
139
Reversed phase equilibrium constraints on the stability of Mg-Fe-Al biotite
R.G. Berman, L. Ya. Aranovich, D.G. Rancourt, and P.h.J. Mercier
151
Crystal-chemistry of synthetic K-feldspar-buddingtonite and muscovite-tobelite solid solutions
Birgit Pöter, Matthias Gottschalk, and Wilhelm Heinrich
166
Compressibility and pressure-induced amorphization of guest-free melanophlogite: An in-situ synchrotron X-ray diffraction study
Hongwu Xu, Jianzhong Zhang, Yusheng Zhao, George D. Guthrie, Donald D. Hickmott, and Alexandra Navrotsky
174
Effect of cation ordering and pressure on spinel elasticity by ab initio simulation
Li Li, Philippe Carrez, and Donald Weidner
179
Structure of mixed-layer kaolinite-smectite and smectite-to-kaolinite transformation mechanism from synthesis experiments
Teresa Dudek, Javier Cuadros, and Javier Huertas
193
Crystal structure of tooeleite, Fe6(AsO3)4SO4(OH)4·4H2O, a new iron arsenite oxyhydroxysulfate mineral relevant to acid mine drainage
Guillaume Morin, Gwenaelle Rousse, and Erik Elkaim
198
Zincalstibite, a new mineral, and cualstibite: Crystal chemical and structural relationships
Elena Bonaccorsi, Stefano Merlino, and Paolo Orlandi
204
New chemical and physical data on keilite from the Zaklodzie enstatite achondrite
Lukasz Karwowski, Ryszard Kryza, and Tadeusz A. Przylibski
210
Constraining 17O and 27Al NMR spectra of high-pressure crystals and glasses: New data for jadeite, pyrope, grossular, and mullite
Kimberly E. Kelsey, Jonathan F. Stebbins, Lin-shu Du, and Ben Hankins
217
Generation history of carbonado inferred from photoluminescence spectra, cathodoluminescence imaging, and carbon-isotopic composition
Hiroyuki Kagi, Shuichi Sato, Tasuku Akagi, and Hisao Kanda
ERRATA
232
ERRATUM: Crystallographic alignments in a coccolith (Pleurochrysis carterae) revealed by electron back-scattered diffraction (EBSD) by Kazuko Saruwatari, Noriaki Ozaki, Hiromichi Nagasawa, and Toshihiro Kogure (vol. 91, 1937-1940, 2006; erratum DOI: 10.2138/am.2007.486)
DEPOSIT ITEMS
80
The crystal chemistry of welshite, a non-centrosymmetric (P1) aenigmatite-sapphirinesurinamite group mineral
Edward S. Grew, Jacques Barbier, Jim Britten, Ulf Hålenius, and Charles K. Shearer
Tables 3, 4a, and 4c (atomic coordinates, displacement parameters, and site occupancies and other data
AM-07-002.zip zipped
91
Synchrotron powder X-ray diffraction study of the structure and dehydration behavior of sepiolite
Jeffrey E. Post, David L. Bish, and Peter J. Heaney
Appendix 1, the full set of atom positions for sepiolite under vacuum
AM-07-001.zip zipped
151
Crystal-chemistry of synthetic K-feldspar-buddingtonite and muscovite-tobelite solid solutions
Birgit Pöter, Matthias Gottschalk, and Wilhelm Heinrich
198
Zincalstibite, a new mineral, and cualstibite: Crystal chemical and structural relationships
Elena Bonaccorsi, Stefano Merlino, and Paolo Orlandi
Tables 8 and 9. Anisotropic displacement parameters, Table 10. Observed and calculated structure factors for cualstibite and Table 11. Observed and calculated structure factors for zincalstibite
AM-07-003.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.