American Mineralogist
LETTER
1727
Crystal structure of argentopyrite, AgFe2S3, and its relationship with cubanite
Hexiong Yang, William W. Pinch, and Robert T. Downs
1731
Magnetite-free, yellow lizardite serpentinization of olivine websterite, Canyon Mountain complex, N.E. Oregon
Bernard W. Evans, Scott M. Kuehner, and Anastasia Chopelas
1735
The influence of atomic size and charge of dissolved species on the diffusivity and viscosity of silicate melts
Liqun Zhang, James A. Van Orman, and Daniel J. Lacks
1739
Si-Al distribution in high-pressure CaAl4Si2O11 phase: A 29Si and 27Al NMR study
Xianyu Xue, Shuangmeng Zhai, and Masami Kanzaki
REVIEW ARTICLE
1505
Microbe-clay mineral interactions
Hailiang Dong, Deb P. Jaisi, Jinwook Kim, and Gengxin Zhang
REGULAR ARTICLE
1520
Chemical substitutions, paragenetic relations, and physical conditions of formation of h??gbomite in the Sittampundi layered anorthosite complex, South India
Pulak Sengupta, Uttam K. Bhui, Ingo Braun, Upama Dutta, and D. Mukhopadhyay
1535
Miguelromeroite, the Mn analogue of sainfeldite, and redefinition of villyaellenite as an ordered intermediate in the sainfeldite-miguelromeroite series
Anthony R. Kampf
1541
Mechanism and kinetics of a mineral transformation under hydrothermal conditions: Calaverite to metallic gold
Jing Zhao, Joël Brugger, Pascal V. Grundler, Fang Xia, Guorong Chen, and Allan Pring
1556
A statistical reassessment of the evidence for the racemic distribution of quartz enantiomorphs
MarÃa Támara and Martin R. Preston
1560
On the crystal structure and crystal chemistry of pollucite, (Cs,Na)16Al16Si32O96·nH2O: A natural microporous material of interest in nuclear technology
G. Diego Gatta, R. Rinaldi, G.J. McIntyre, G. Nénert, F. Bellatreccia, A. Guastoni, and G. Della Ventura
1569
The effect of fluid inclusion size on determination of homogenization temperature and density of liquid-rich aqueous inclusions
András Fall, J. Donald Rimstidt, and Robert J. Bodnar
1580
Effect of SiO2, total FeO, Fe3+/Fe2+, and alkali elements in basaltic glasses on mid-infrared spectra
CŽleste D.M. Dufresne, Penelope L. King, M. Darby Dyar, and Kim N. Dalby
1591
Influence of cation size on the low-temperature heat capacity of alkaline earth metasilicate glasses
Pascal Richet, Atsusi Nidaira, Daniel R. Neuville, and Tooru Atake
1596
The high-pressure–high-temperature behavior of bassanite
Paola Comodi, Sabrina Nazzareni, Leonid Dubrovinsky, and Marco Merlini
1603
Geochemistry of reversible hydratable tephra from the Trans Mexican Volcanic Belt
Liberto De Pablo, Mercedes Doval, and Angel La Iglesia
1616
Physical contradictions and remedies using simple polythermal equations of state
George Helffrich and J.A.D. Connolly
1620
Thermodynamic and crystallographic properties of kornelite [Fe2(SO4)3·~7.75H2O] and paracoquimbite [Fe2(SO4)3·9H2O]
Sonia Ackermann, Biljana Lazic, Thomas Armbruster, Stephen Doyle, Klaus-Dieter Grevel, and Juraj Majzlan
1629
Humidity-induced phase transitions of ferric sulfate minerals studied by in situ and ex situ X-ray diffraction
Wenqian Xu, Nicholas J. Tosca, Scott M. McLennan, and John B. Parise
1638
In situ Raman spectroscopy of MgSiO3 enstatite up to 1550 K
Rachel Zucker and Sang-Heon Shim
1647
Optical spectroscopic study of tetrahedrally coordinated Co2+ in natural spinel and staurolite at different temperatures and pressures
Michail N. Taran, Monika Koch-Müller, and Anne Feenstra
1653
New insights into smectite illitization: A zoned K-bentonite revisited
Douglas K. McCarty, Boris A. Sakharov, and Victor A. Drits
1672
The hydrothermal conversion of kaolinite to kalsilite: Influence of time, temperature, and pH
Ana Isabel Becerro, Alberto Escudero, and Marco Mantovani
1679
Sideronatrite, Na2Fe(SO4)2(OH)·3H2O: Crystal structure of the orthorhombic polytype and OD character analysis
Fernando Scordari and Gennaro Ventruti
1687
Anharmonic OH vibrations in brucite: Small pressure-induced redshift in the range 0–22 GPa
Pavlin D. Mitev, Grzegorz Gajewski, and Kersti Hermansson
1698
Structural properties of biologically controlled hydrozincite: An HRTEM and NMR spectroscopic study
Giovanni De Giudici, Francesca Podda, Roberta Sanna, Elodia Musu, Riccardo Tombolini, Carla Cannas, Anna Musinu, and Mariano Casu
1707
Mechanism of wollastonite carbonation deduced from micro- to nanometer length scale observations
Damien Daval, Isabelle Martinez, Jean-Michel Guigner, Roland Hellmann, Jérôme Corvisier, Nathaniel Findling, Christian Dominici, Bruno Goffé, and François Guyot
BOOK REVIEW
1743
BOOK REVIEW: PHOTOATLAS OF INCLUSIONS IN GEMSTONES, Vol. 3, by Eduard J. Gübelin and John I. Koivula (2008). Opinio-Verlag, Basel, Switzerland, 672 p. ISBN 978-3-03999-047-4.
George E. Harlow
DEPOSIT ITEMS
1535
Miguelromeroite, the Mn analogue of sainfeldite, and redefinition of villyaellenite as an ordered intermediate in the sainfeldite-miguelromeroite series
Anthony R. Kampf
Data sets, Crystallographic Information Files (CIF) and Observed and calculated structure factors
AM-09-048.zip zipped
1560
On the crystal structure and crystal chemistry of pollucite, (Cs,Na)16Al16Si32O96·nH2O: A natural microporous material of interest in nuclear technology
G. Diego Gatta, R. Rinaldi, G.J. McIntyre, G. Nénert, F. Bellatreccia, A. Guastoni, and G. Della Ventura
1580
Effect of SiO2, total FeO, Fe3+/Fe2+, and alkali elements in basaltic glasses on mid-infrared spectra
CŽleste D.M. Dufresne, Penelope L. King, M. Darby Dyar, and Kim N. Dalby
Appendix Table A1. Experimental and analytical data for repeated analyses of synthetic basaltic glasses and Appendix Figures A1. Plot of KK-abs. peak location vs. FeO total wt% of basaltic glasses and A2. Plot of KK-abs. peak location vs. CaO wt% of basaltic glasses.
AM-09-050.zip zipped
1591
Influence of cation size on the low-temperature heat capacity of alkaline earth metasilicate glasses
Pascal Richet, Atsusi Nidaira, Daniel R. Neuville, and Tooru Atake
1620
Thermodynamic and crystallographic properties of kornelite [Fe2(SO4)3·~7.75H2O] and paracoquimbite [Fe2(SO4)3·9H2O]
Sonia Ackermann, Biljana Lazic, Thomas Armbruster, Stephen Doyle, Klaus-Dieter Grevel, and Juraj Majzlan
Supplementary Table. Interatomic distances () and angles (¡) for kornelite and Crystallographic Information Files (CIF)
AM-09-062.zip zipped
1679
Sideronatrite, Na2Fe(SO4)2(OH)·3H2O: Crystal structure of the orthorhombic polytype and OD character analysis
Fernando Scordari and Gennaro Ventruti
1707
Mechanism of wollastonite carbonation deduced from micro- to nanometer length scale observations
Damien Daval, Isabelle Martinez, Jean-Michel Guigner, Roland Hellmann, Jérôme Corvisier, Nathaniel Findling, Christian Dominici, Bruno Goffé, and François Guyot
1727
Crystal structure of argentopyrite, AgFe2S3, and its relationship with cubanite
Hexiong Yang, William W. Pinch, and Robert T. Downs
1739
Si-Al distribution in high-pressure CaAl4Si2O11 phase: A 29Si and 27Al NMR study
Xianyu Xue, Shuangmeng Zhai, and Masami Kanzaki
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.