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A contribution to the study of moonstone from Ceylon and other areas and of the stability-relations of the alkali-felspars

Published online by Cambridge University Press:  14 March 2018

Edmondson Spencer
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Extract

Ceylon moonstone is probably the best known variety of those alkali-felspars which display a prominent internal colour reflection or ‘schiller’. On account of its blue sheen and its clear transparency, the mineral has attained a certain degree of popularity and some value as a gem-stone.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 22 , Issue 130 , September 1930 , pp. 291 - 367
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1930

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