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The site distribution of iron and anomalous biaxiality in osumilite

Goldman, Don S. and Rossman, George R. (1978) The site distribution of iron and anomalous biaxiality in osumilite. American Mineralogist, 63 (5-6). pp. 490-498. ISSN 0003-004X.

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Osumilites from Sakkabira, Japan, Obsidian Cliffs, Oregon, and Nain, Labrador have been studied by optical, infrared, and Mössbauer spectroscopy. Osumilite is an anhydrous mineral. A major proportion of the Fe^(2+) occurs in the channel-like cavities. Biaxial Nain osumilite is X-ray hexagonal, and does not show infrared spectroscopic evidence for Al/Si ordering. The biaxiality arises from the channel contents.

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Rossman, George R.0000-0002-4571-6884
Additional Information:© 1978 Mineralogical Society of America. Manuscript received, August 26, 1977; accepted for publication, December 5, 1977. Wayne Dollase (University of California, Los Angeles) took the Mössbauer spectra used in this study and fitted the spectrum of the Obsidian Cliffs sample. Jonathan Berg (Northern Illinois University) provided the Nain osumilite, Gordon Brown (Stanford University) provided the crystals of the Sakkabira osumilite and several discussions concerning osumilite crystal chemistry, and Jack Huneke (California Institute of Technology) provided Obsidian Cliffs osumilite. Portions of this research were supported by NSF Grant EAR76-02014.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
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Caltech Division of Geological and Planetary Sciences2956
Issue or Number:5-6
Record Number:CaltechAUTHORS:20130514-072308559
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Official Citation:The site distribution of iron and anomalous biaxiality in osumilite Don S. Goldman and George R. Rossman 490-498, 1978
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38476
Deposited By: Ruth Sustaita
Deposited On:14 May 2013 14:53
Last Modified:26 Nov 2019 11:15

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