The Hydroxyl-Stretching Region of the Biotite Mica Spectrum1

R. W. T. Wilkins
Department of Geological Sciences, Harvard Universityl Cambridge, Massachusetts
1Published under the auspices of the Committee on Experimental Geology and Geophysics at Harvard University.

Summary: An interpretation of part of the hydroxyl-stretching region of the infra-red absorption spectrum of biotite is proposed. A consideration of band shapes enables the interpretation to be quantified and tested against a series of natural biotites. The equation derived may be used to determine the atomic ratio Mg2+/(Mg2++Fe2+) in biotites but the necessary assumptions and simplifications make it unlikely that the method will be very useful in practice.

Mineralogical Magazine; September 1967 v. 36; no. 279; p. 325-333; DOI: 10.1180/minmag.1967.036.279.04
© 1967, The Mineralogical Society
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