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VIII. On Haughtonite; a new Mica

Published online by Cambridge University Press:  14 March 2018

Heddle
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Abstract

Dr. Haughton, by his numerous analyses of the black mica of the Irish granites, may be said to have established the specific individuality of the lepidomelane of Hausmann.

That mineral his analyses showed to differ from Biotite in its great excess of ferric oxide and its comparative deficiency of ferrous oxide and magnesia.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 3 , Issue 13 , April 1879 , pp. 72 - 84
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1879

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