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On the Tetartohedral Development of a Crystal of Tourmaline

Published online by Cambridge University Press:  14 March 2018

R. H. Solly
R. H. Solly*
Affiliation:
University of Cambridge
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Extract

In working on the isomorphism of Tourmaline I have been struck by the very peculiar development of a fine crystal from Pierrepont, New York, now in the Cambridge Collection.

The crystal is doubly terminated, of a jet-black colour and splendid lustre. It weighs 814.88 grammes, and measures 1⅙ inch by 1 inch by ½ inch.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 6 , Issue 28 , December 1884 , pp. 80 - 82
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1884

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