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GEOREF RECORD

OH in naturally occurring corundum

Anton Beran and George R. Rossman
OH in naturally occurring corundum
European Journal of Mineralogy (August 2006) 18 (4): 441-447

Abstract

Hydroxide bands arising from intrinsic hydrous defects have been observed in the IR spectra of 159 corundum crystals from worldwide locations. The OH defects are most prominent in blue sapphire crystals, suggesting an association of OH with redox reactions involving iron. Using a calibration for OH in kyanite, the absolute amounts of OH in corundum are generally < or = 0.5 wt %. The linear OH absorption coefficient for the most intense band centred at 3310 cm (super -1) never exceeds 0.5 cm (super -1) . A number of previously identified hydrous inclusions often contribute to absorptions in the OH stretching region of the corundum IR spectrum.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 18
Serial Issue: 4
Title: OH in naturally occurring corundum
Affiliation: California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States
Pages: 441-447
Published: 200608
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 35
Accession Number: 2006-069701
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 200640
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