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New data on painite

Shigley, James E. and Kampf, Anthony R. and Rossman, George R. (1986) New data on painite. Mineralogical Magazine, 50 (356). pp. 267-270. ISSN 0026-461X. doi:10.1180/minmag.1986.050.356.09.

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A crystal of painite discovered in 1979 in a parcel of rough gem spinel from Burma represents the third known crystal of the species. This crystal is similar to the type crystal in most respects. Chemical analyses of both the new crystal and the type crystal confirmed the essential constituents reported by Moore and Araki (1976) and showed in addition the presence of trace amounts of Fe, Cr, V, Ti, Na, and Hf. Optical absorption spectra suggest that the red colour of painite is caused principally by Cr^(3+) and V^(3+).

Item Type:Article
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URLURL TypeDescription
Kampf, Anthony R.0000-0001-8084-2563
Rossman, George R.0000-0002-4571-6884
Additional Information:© 1986 Mineralogical Society. Manuscript received 31 July 1985. We thank Roger Kuchek for bringing his discovery of the third painite crystals to our attention. Paul B. Moore provided the remaining portion of the type crystal fragment used in his structure determination. John White of the US National Museum of Natural History provided an additional fragment of the type crystal. A. M. Clark supplied information on the status of the two painite crystals in the collection of the British Museum (Natural History). Randy Heuser and Arthur Chodos of the California Institute of Technology and Carol Stockton of the Gemological Institute of America assisted in carrying out the microprobe and XRF analyses. John McCloy and Susan Kingsbury of the Gemological Institute of America drafted the figures.
Subject Keywords:painite; new data; colour; Mogok; Burma
Issue or Number:356
Record Number:CaltechAUTHORS:20130430-073706637
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38170
Deposited By: Tony Diaz
Deposited On:30 Apr 2013 19:32
Last Modified:09 Nov 2021 23:35

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