On the Chemical Classification of the Mica Group. II. The Basic Micas

A. F. Hallimond

Assistant Curator, Musenm of Practical Geology, London.1

¹Communicated by permission of the Director.

Mineralogical Magazine; June 1926 v. 21; no. 113; p. 25-33; DOI: 10.1180/minmag.1926.021.113.01
© 1926, The Mineralogical Society
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