Rhodesite, a New Mineral from the Bultfontein Mine, Kimberley

E. D. Mountain
Professor of Geology, Rhodes University, Grahamstown, South Africa.

Summary: A small specimen at first thought to be natrolite has proved to be a new mineral, for which the name rhodesite is proposed; it is fibrous, with α 1·502, β 1·506, γ 1·515, elongation γ, extinction straight, sp. gr. 2·36. The composition is near 4(Ca,Na2,K2)O. 10SiO2. 7H2O, and the water is all zeolitic.

Mineralogical Magazine; December 1957 v. 31; no. 239; p. 607-610; DOI: 10.1180/minmag.1957.31.239.01
© 1957, The Mineralogical Society
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