American Mineralogist
Open AccessLETTER
651
Pressure-induced transformations in kaolinite
Mark D. Welch and Wilson A. Crichton
655
The crystal structure of gypsum-II determined by single-crystal synchrotron X-ray diffraction data
Sabrina Nazzareni, Paola Comodi, Luca Bindi, and Leonid Dubrovinsky
REGULAR ARTICLE
425
Fe site occupancy in magnetite-ulv??spinel solid solutions: A new approach using X-ray magnetic circular dichroism
Carolyn I. Pearce, C. Michael B. Henderson, Neil D. Telling, Richard A.D. Pattrick, John M. Charnock, Victoria S. Coker, Elke Arenholz, Floriana Tuna, and Gerrit van der Laan
440
Discovery, mineral paragenesis, and origin of wadalite in a meteorite
Hope A. Ishii, Alexander N. Krot, John P. Bradley, Klaus Keil, Kazuhide Nagashima, Nick Teslich, Benjamin Jacobsen, and Qing-Zhu Yin
449
Cathodoluminescence microscopy and spectroscopy of synthetic ruby crystals grown by the optical floating zone technique
Christo Guguschev, Jens G??tze, and Matthias G??bbels
456
Structural relaxation around Cr3+ and the red-green color change in the spinel (sensu stricto)-magnesiochromite (MgAl2O4-MgCr2O4) and gahnite-zincochromite (ZnAl2O4-ZnCr2O4) solid-solution series
Ulf HÃ¥lenius, Giovanni B. Andreozzi, and Henrik Skogby
463
Recrystallization in fully metamict gadolinite from Ytterby (Sweden), annealed in air and studied by 57Fe M??ssbauer spectroscopy
Dariusz Malczewski
472
Fantappiite, a new mineral of the cancrinite-sodalite group with a 33-layer stacking sequence: Occurrence and crystal structure
Fernando C‡mara, Fabio Bellatreccia, Giancarlo Della Ventura, Annibale Mottana, Luca Bindi, Mickey E. Gunter, and Marco Sebastiani
481
Reinvestigation of the crystal structure of the zeolite gobbinsite: A single-crystal X-ray diffraction study
G. Diego Gatta, William D. Birch, and Nicola Rotiroti
487
Arsenic-rich fergusonite-beta-(Y) from Mount Cervandone (Western Alps, Italy): Crystal structure and genetic implications
Alessandro Guastoni, Fernando Cámara, and Fabrizio Nestola
495
Crystal structure and low-temperature behavior of “disordered†thomsonite
G. Diego Gatta, Volker Kahlenberg, Reinhard Kaindl, Nicola Rotiroti, Piergiulio Cappelletti, and Maurizio de’ Gennaro
503
Cooling-induced crystallization of microlite crystals in two basaltic pumice clasts
Lindsay Szramek, James E. Gardner, and Matthias Hort
510
Crystal structure analyses of four tourmaline specimens from the Cleopatra’s Mines (Egypt) and Jabal Zalm (Saudi Arabia), and the role of Al in the tourmaline group
Ferdinando Bosi, TonÄi Balić-Žunić, and Adel A. Surour
519
Combined single-crystal X-ray and neutron powder diffraction structure analysis exemplified through full structure determinations of framework and layer beryllate minerals
Jennifer A. Armstrong, Henrik Friis, Alexandra Lieb, Adrian A. Finch, and Mark T. Weller
527
Olivine crystal size distributions in kimberlite
Stephen Moss, James Kelly Russell, Barbara H. Scott Smith, and Richard Curtis Brett
537
Solubility of manganotantalite and manganocolumbite in pegmatitic melts
Alexander Bartels, Francois Holtz, and Robert L. Linnen
545
The effect of silica on ferric/ferrous ratio in silicate melts: An experimental study using M??ssbauer spectroscopy
Alexander Borisov and Catherine McCammon
556
HRTEM investigation of trilling todorokite and nano-phase Mn-oxides in manganese dendrites
Huifang Xu, Tianhu Chen, and Hiromi Konishi
563
Thermo-chemical and thermo-physical properties of the high-pressure phase anhydrous B (Mg14Si5O24): An ab-initio all-electron investigation
G. Ottonello, B. Civalleri, J. Ganguly, W.F. Perger, D. Belmonte, and M. Vetuschi Zuccolini
574
The incommensurately modulated structures of natural natrite at 120 and 293 K from synchrotron X-ray data
Alla Arakcheeva, Luca Bindi, Philip Pattison, Nicolas Meisser, Gervais Chapuis, and Igor Pekov
582
Sulfide oxidation observed using micro-Raman spectroscopy and micro-X-ray diffraction: The importance of water/rock ratios and pH conditions
Alexandra Courtin-Nomade, Hubert Bril, Jean-Michel Bény, Martin Kunz, and Nobumichi Tamura
592
In situ measurements of plagioclase growth using SIMS depth profiles of 7Li/30Si: A means to acquire crystallization rates during short-duration decompression events
Kimberly Genareau and Amanda B. Clarke
602
Crystal chemistry of the MgAl2O4-MgMn2O4-MnMn2O4 system: Analysis of structural distortion in spinel- and hausmannite-type structures
Ferdinando Bosi, Ulf HÃ¥lenius, and Henrik Skogby
608
The effect of Al and water on the compressibility of diopside
Polina Gavrilenko, Tiziana Boffa Ballaran, and Hans Keppler
617
Geothermometric study of Mg-rich spinels from the Somma-Vesuvius volcanic complex (Naples, Italy)
Sergio Lucchesi, Ferdinando Bosi, and Antonio Pozzuoli
622
Mineralogy and origin of oxygen-bearing platinum-iron grains based on an X-ray absorption spectroscopy study
Kéiko H. Hattori, Yoshio Takahashi, and Thierry Augé
631
Serpentine minerals discrimination by thermal analysis
Cecilia Viti
639
A new type of cubic-stacked layer structure in anthoinite, AlWO3(OH)3
Ian E. Grey, Ian C. Madsen, Stuart J. Mills, Frederic Hatert, Vanessa K. Peterson, and Timothy J. Bastow
646
Townendite, Na8ZrSi6O18, a new uranium-bearing lovozerite group mineral from the Il??maussaq alkaline complex, Southern Greenland
Ian E. Grey, Colin M. Macrae, W. Gus Mumme, and Allan Pring
AWARD
659
Presentation of the 2009 Roebling Medal of the Mineralogical Society of America to Alexandra Navrotsky
Nancy L. Ross
661
Acceptance of the Roebling Medal for 2009 of the Mineralogical Society of America
Alexandra Navrotsky
662
Presentation of the Mineralogical Society of America Award for 2009
Gordon E. Brown, Jr.
664
Acceptance of the Mineralogical Society of America Award for 2009
Thomas P. Trainor
666
Presentation of the Distinguished Public Service Medal of the Mineralogical Society of America for 2009
Russell J. Hemley
667
Acceptance of the Mineralogical Society of America Distinguished Public Service Medal for 2009
Robert M. Hazen
668
Presentation of the Mineralogical Society of America Dana Medal for 2009 to Ronald E. Cohen
Russell J. Hemley
669
Acceptance of the Dana Medal of the Mineralogical Society of America for 2009
Ronald E. Cohen
DEPOSIT ITEMS
472
Fantappiite, a new mineral of the cancrinite-sodalite group with a 33-layer stacking sequence: Occurrence and crystal structure
Fernando C‡mara, Fabio Bellatreccia, Giancarlo Della Ventura, Annibale Mottana, Luca Bindi, Mickey E. Gunter, and Marco Sebastiani
Item#: AM-10-017
Table 5. Final coordinates and displacement parameters for fantappiite, Table 6. Anisotropic displacement parameters (2Ê_ 103) for fantappiite, Table 6. Anisotropic displacement parameters (2x 103) for fantappiite, Table 7. Observed and calculated structure factors for fantappiite (Mislabeled Table 5) and Crystallographic Information File
AM-10-017.zip zipped
Table 5. Final coordinates and displacement parameters for fantappiite, Table 6. Anisotropic displacement parameters (2Ê_ 103) for fantappiite, Table 6. Anisotropic displacement parameters (2x 103) for fantappiite, Table 7. Observed and calculated structure factors for fantappiite (Mislabeled Table 5) and Crystallographic Information File
AM-10-017.zip zipped
495
Crystal structure and low-temperature behavior of “disordered†thomsonite
G. Diego Gatta, Volker Kahlenberg, Reinhard Kaindl, Nicola Rotiroti, Piergiulio Cappelletti, and Maurizio de’ Gennaro
Item#: AM-10-022
Crystallographic Information File (CIF) and Table 4. Positional and displacement atomic parameters, bond-distances and -angles for the refinements at 248.0, 198.0, 148.0, and 296.0 K (after the low-T experiments).
AM-10-022.zip zipped
Crystallographic Information File (CIF) and Table 4. Positional and displacement atomic parameters, bond-distances and -angles for the refinements at 248.0, 198.0, 148.0, and 296.0 K (after the low-T experiments).
AM-10-022.zip zipped
510
Crystal structure analyses of four tourmaline specimens from the Cleopatra’s Mines (Egypt) and Jabal Zalm (Saudi Arabia), and the role of Al in the tourmaline group
Ferdinando Bosi, TonÄi Balić-Žunić, and Adel A. Surour
Item#: AM-10-023
Table 3. Relevant bond lengths () and Table 4. Anisotropic displacement parameters for non-hydrogen atoms
AM-10-023.zip zipped
Table 3. Relevant bond lengths () and Table 4. Anisotropic displacement parameters for non-hydrogen atoms
AM-10-023.zip zipped
519
Combined single-crystal X-ray and neutron powder diffraction structure analysis exemplified through full structure determinations of framework and layer beryllate minerals
Jennifer A. Armstrong, Henrik Friis, Alexandra Lieb, Adrian A. Finch, and Mark T. Weller
527
Olivine crystal size distributions in kimberlite
Stephen Moss, James Kelly Russell, Barbara H. Scott Smith, and Richard Curtis Brett
Item#: AM-10-014
Appendix 1: Methods, Appendix 2, Table A1: Summary of 2D olivine* crystal data in thin sections (12.5x25mm) of coherent kimberlite, Table A2: Summary of 2D olivine* crystal data in slabs (47x77mm) of coherent kimberlite, and Table A3: Comparison of modal abundance (%) of olivine obtained from different scales of observation and by different methods
AM-10-014.zip zipped
Appendix 1: Methods, Appendix 2, Table A1: Summary of 2D olivine* crystal data in thin sections (12.5x25mm) of coherent kimberlite, Table A2: Summary of 2D olivine* crystal data in slabs (47x77mm) of coherent kimberlite, and Table A3: Comparison of modal abundance (%) of olivine obtained from different scales of observation and by different methods
AM-10-014.zip zipped
563
Thermo-chemical and thermo-physical properties of the high-pressure phase anhydrous B (Mg14Si5O24): An ab-initio all-electron investigation
G. Ottonello, B. Civalleri, J. Ganguly, W.F. Perger, D. Belmonte, and M. Vetuschi Zuccolini
Item#: AM-10-015
Appendix I. Computational details on the adopted all-electron LCAO DFT/B3LYP procedure
AM-10-015.zip zipped
Appendix I. Computational details on the adopted all-electron LCAO DFT/B3LYP procedure
AM-10-015.zip zipped
574
The incommensurately modulated structures of natural natrite at 120 and 293 K from synchrotron X-ray data
Alla Arakcheeva, Luca Bindi, Philip Pattison, Nicolas Meisser, Gervais Chapuis, and Igor Pekov
602
Crystal chemistry of the MgAl2O4-MgMn2O4-MnMn2O4 system: Analysis of structural distortion in spinel- and hausmannite-type structures
Ferdinando Bosi, Ulf HÃ¥lenius, and Henrik Skogby
Item#: AM-10-019
Table 2. Anisotropic displacement parameters for atoms in the seven analyzed spinel-hausmannite crystals
AM-10-019.zip zipped
Table 2. Anisotropic displacement parameters for atoms in the seven analyzed spinel-hausmannite crystals
AM-10-019.zip zipped
608
The effect of Al and water on the compressibility of diopside
Polina Gavrilenko, Tiziana Boffa Ballaran, and Hans Keppler
639
A new type of cubic-stacked layer structure in anthoinite, AlWO3(OH)3
Ian E. Grey, Ian C. Madsen, Stuart J. Mills, Frederic Hatert, Vanessa K. Peterson, and Timothy J. Bastow
651
Pressure-induced transformations in kaolinite
Mark D. Welch and Wilson A. Crichton
Item#: AM-10-024
Table 1. Unit-cell parameters of kaolinites I, II, and III as a function of pressure
AM-10-024.zip zipped
Table 1. Unit-cell parameters of kaolinites I, II, and III as a function of pressure
AM-10-024.zip zipped
655
The crystal structure of gypsum-II determined by single-crystal synchrotron X-ray diffraction data
Sabrina Nazzareni, Paola Comodi, Luca Bindi, and Leonid Dubrovinsky
Item#: AM-10-016
Table 4. List of the squared structure factors (calculated and observed) and Crystallographic Information Files (CIF)
AM-10-016.zip zipped
Table 4. List of the squared structure factors (calculated and observed) and Crystallographic Information Files (CIF)
AM-10-016.zip zipped
TABLE OF CONTENTS
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SPECIAL COLLECTIONS
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American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.