An E.S.R. Study of Natural Fluorite Containing Manganese Impurities

A. D. Bailey1, R. P. Hunt2 and K. N. R. Taylor3
1Now at University of Bath, England.
2Now at CEGB Nuclear Research Laboratory, Berkeley, England.
3Now at Physics Dept. University of N.S.W. Sydney, Australia.

Summary: The electron spin resonance spectrum of a sample of natural, orange-coloured fluorite from Broken Hill, Australia, has been observed and shown to arise from the presence of manganese ions. From an analysis of the structure of this spectrum it has been possible to estimate the various contributions to the ionic energy level splitting and to show that these are in good agreement with comparable results for synthetic material. It is evident that the manganese ions have entered the lattice substitutionally at Ca2+ sites and the nature of this site is discussed.

Mineralogical Magazine; June 1974 v. 39; no. 306; p. 705-708; DOI: 10.1180/minmag.1974.039.306.09
© 1974, The Mineralogical Society
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