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Nomenclature of the micas

October 22, 1999

End-members and species defined with permissible ranges of composition are presented for the true micas, the brittle micas, and the interlayer-deficient micas. The determination of the crystallochemical formula for different available chemical data is outlined, and a system of modifiers and suffixes is given to allow the expression of unusual chemical substitutions or polytypic stacking arrangements. Tables of mica synonyms, varieties, ill-defined materials, and a list of names formerly or erroneously used for micas are presented. The Mica Subcommittee was appointed by the Commission on New Minerals and Mineral Names of the International Mineralogical Association. The definitions and recommendations presented were approved by the Commission.

Citation Information

Publication Year 1999
Title Nomenclature of the micas
DOI 10.1180/minmag.1999.063.2.13
Authors M. Rieder, G Cavazzini, Y.S. D'yakonov, V.A. Frank-Kamenetskii, G Gottardi, S. Guggenheim, P.V. Koval, G Muller, A.M.R. Neiva, E.W. Radoslovich, J.-L. Robert, F.P Sassi, H. Takeda, David R. Wones
Publication Type Article
Publication Subtype Journal Article
Series Title Mineralogical Magazine
Index ID 70206105
Record Source USGS Publications Warehouse