Studies of the Orthoamphiboles. IV. Mössbauer Spectra of Anthophyllites and Gedrites

Anthony D. Law*
Department of Earth Sciences, University of Oxford, Parks Road, Oxford OX13PR
*Present address: BP Exploration Company Ltd., Britannic House, Moor Lane, London EC2Y 9BU.

Abstract: Fitted Mössbauer spectra are presented for a set of anthophyllites and gedrites. Despite their complexity it is possible to obtain fits for gedrite spectra and the Mössbauer parameters are consistent with results for anthophyllites from this and previous studies. At least three doublets are required to fit the Fe2+ absorption in gedrites; there is no single model at present to explain the behaviour of the spectra. Fe3+ absorption is also resolved.

Keywords: orthoamphiboles • Mössbauer spectra • anthophyllites • gedrites

Mineralogical Magazine; April 1989 v. 53; no. 370; p. 181-191; DOI: 10.1180/minmag.1989.053.370.05
© 1989, The Mineralogical Society
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