American Mineralogist
Open AccessLETTER
455
A new dense silica polymorph: A possible link between tetrahedrally and octahedrally coordinated silica
Sheng-Nian Luo, Oliver Tschauner, Paul D. Asimow, and Thomas J. Ahrens
462
Epitaxial relationships of clinopyroxene-hosted magnetite determined using electron backscatter diffraction (EBSD) technique
Joshua M. Feinberg, Hans-Rudolf Wenk, Paul R. Renne, and Gary R. Scott
REGULAR ARTICLE
257
Composition and I4/m–P42/n phase transition in scapolite solid solutions
Yusuke Seto, Norimasa Shimobayashi, Akira Miyake, and Masao Kitamura
266
Synthesis and characterization of K2Ca5(SO4)6·H2O, the equivalent of görgeyite, a rare evaporite mineral
J. Theo Kloprogge, Liesel Hickey, Loc V. Duong, Wayde N. Martens, and Ray L. Frost
273
Phase relations in the system Fe-FeSi at 21 GPa
Yasuhiro Kuwayama and Kei Hirose
277
The speciation of dissolved H2O in dacitic melt
Yang Liu, Harald Behrens and Youxue Zhang
285
Nucleation and growth kinetics of the α-β transformation in Mg2SiO4 determined by in situ synchrotron powder X-ray diffraction
Tomoaki Kubo, Eiji Ohtani, and Ken-ichi Funakoshi
294
Experimental determination of siderite stability and application to Martian Meteorite ALH84001
Andrea M. Koziol
301
Determination of the molar absorption coefficient for the infrared absorption band of CO2 in rhyolitic glasses
Harald Behrens, Nathalie Tamic, and Francois Holtz
307
Crystallographic properties of the calcium phosphate mineral, brushite, by means of First Principles calculations
C. Ignacio Sainz-DÃaz, Ana Villacampa, and FermÃn Otálora
314
The crystal structure of jonesite, Ba2(K,Na)[Ti2(Si5Al)O18(H2O)](H2O)n: A first example of titanosilicate with porous double layers
Sergey V. Krivovichev and Thomas Armbruster
319
Crystal-chemistry of talc: A near infrared (NIR) spectroscopy study
Sabine Petit, François Martin, Andrzej Wiewiora, Philippe De Parseval, and Alain Decarreau
327
Synthesis of beryllian sapphirine in the system MgO-BeO-Al2O3-SiO2-H2O and comparison with naturally occurring beryllian sapphirine and khmaralite, Part 2: A chemographic study of Be content as a function of P, T, assemblage and FeMg-1 exchange
A. G. Christy and E. S. Grew
339
Spriggite, Pb3[(UO2)6O8(OH)2](H2O)3, a new mineral with β-U3O8-type sheets: Description and crystal structure
Joël Brugger, Sergey V. Krivovichev, Peter Berlepsch, Nicolas Meisser, Stefan Ansermet, and Thomas Armbruster
348
Sieve-textured plagioclase in dacitic magma: Interference imaging results
Martin L. Stewart and Thomas H. Pearce
352
Single crystal raman spectroscopy of cerussite
Wayde N. Martens, Llew Rintoul, J. Theo Kloprogge, and Ray L. Frost
359
Sodalite: high-temperature structures obtained from synchrotron radiation and Rietveld refinements
Ishmael Hassan, Sytle M. Antao, and John B. Parise
365
The structure of metahohmannite, Fe3+2[O(SO4)2]·H2O, by in situ synchrotron powder diffraction
Fernando Scordari, Gennaro Ventruti, and Alessandro F. Gualtieri
371
High-pressure synchrotron X-ray diffraction study of spessartine and uvarovite: A comparison between different equation of state models
Valeria Diella, Alessandra Sani, Davide Levy, and Alessandro Pavese
377
Quantum calculations of the electronic structure and NMR quadrupolar interaction parameters for tugtupite
Bing Zhou and Barbara L. Sherriff
382
Identification of pyrite valence band contributions using synchrotron-excited X-ray photoelectron spectroscopy
H.W. Nesbitt, A.G. Berlich, S.L. Harmer, I. Uhlig, G.M. Bancroft, and R. Szargan
390
Micro-Raman studies of gypsum in the temperature range between 9 K and 373 K
Chi Hong Chio, Shiv K. Sharma, and David W. Muenow
396
A new rare earth disilicate (REE2Si2O7; REE = Dy, Tm, Lu; type-L): Evidence for nonquenchable 10 GPa polymorph with silicon in fivefold trigonal bipyramidal coordination?
Michael E. Fleet and Xiaoyang Liu
405
Structural variations in the brownmillerite series Ca2(Fe2-xAlx)O5: Single-crystal X-ray diffraction at 25 °C and high-temperature X-ray powder diffraction (25 °C < T < 1000 °C)
Günther J. Redhammer, Gerold Tippelt, Georg Roth, and Georg Amthauer
421
Peculiarity and defect structure of the natural and synthetic zeolite mordenite: A single-crystal X-ray study
Petra Simoncic and Thomas Armbruster
432
Model independent phase equilibrium constraints on the ferrosilite activity in the binary Fe-Mg orthopyroxene solid solution
Leonid Y. Aranovich
438
Microstructural study of synthetic sintered diamond and comparison with carbonado, a natural polycrystalline diamond
Subarnarekha De, Peter J. Heaney, Yingwei Fei, and Edward P. Vicenzi
447
Structural and chemical response to varying [4]B content in zoned Fe-bearing olenite from Koralpe, Austria
John M. Hughes, Andreas Ertl, M. Darby Dyar, Edward S. Grew, Michael Wieden-beck, and Franz Brandstätter
NEW MINERAL NAMES
467
NEW MINERAL NAMES
John L. Jambor, and Andrew C. Roberts
BOOK REVIEW
472
BOOK REVIEW: LUMINESCENT SPECTRA OF MINERALS: REFERENCE-BOOK. by Boris S. Gorobets and Alexandre A. Rogojine. All-Russia Institute of Mineral Resources (VIMS). Moscow, 2002. 300 pp.
Leonid V. Bershov
DEPOSIT ITEMS
277
The speciation of dissolved H2O in dacitic melt
Yang Liu, Harald Behrens and Youxue Zhang
339
Spriggite, Pb3[(UO2)6O8(OH)2](H2O)3, a new mineral with β-U3O8-type sheets: Description and crystal structure
Joël Brugger, Sergey V. Krivovichev, Peter Berlepsch, Nicolas Meisser, Stefan Ansermet, and Thomas Armbruster
Item#: AM-04-055
Table 8. Calculated and observed structure factors for spriggite.
AM-04-055.zip zipped
Table 8. Calculated and observed structure factors for spriggite.
AM-04-055.zip zipped
396
A new rare earth disilicate (REE2Si2O7; REE = Dy, Tm, Lu; type-L): Evidence for nonquenchable 10 GPa polymorph with silicon in fivefold trigonal bipyramidal coordination?
Michael E. Fleet and Xiaoyang Liu
405
Structural variations in the brownmillerite series Ca2(Fe2-xAlx)O5: Single-crystal X-ray diffraction at 25 °C and high-temperature X-ray powder diffraction (25 °C < T < 1000 °C)
Günther J. Redhammer, Gerold Tippelt, Georg Roth, and Georg Amthauer
Item#: AM-04-057
“Table 3: Transition temperatures (in degrees Celsius) for the Pnma to I2mb phase boundary. Table 4: Linear thermal expansion coefficients _ (*10-6/K) for samples of the Ca2Fe2-xAlxO5 solid solution series. Table 7: Anisotropic atomic displacement paramet
AM-04-057.zip zipped
“Table 3: Transition temperatures (in degrees Celsius) for the Pnma to I2mb phase boundary. Table 4: Linear thermal expansion coefficients _ (*10-6/K) for samples of the Ca2Fe2-xAlxO5 solid solution series. Table 7: Anisotropic atomic displacement paramet
AM-04-057.zip zipped
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American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.