On the Chemical Classification of the Mica Group. I. The Acid Micas

A. F. Hallimond
Assistant Curator, Museum of Practical Geology, London.1
1Communicated by permission of the Director.

Mineralogical Magazine; June 1925 v. 20; no. 109; p. 305-318; DOI: 10.1180/minmag.1925.020.109.01
© 1925, The Mineralogical Society
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