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An unusual occurrence of chamosite

Published online by Cambridge University Press:  14 March 2018

J. A. Drennan*
Affiliation:
Research Department, Coronation Brick & Tile Co. Ltd., DurbanSouth Africa
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Abstract

Chamosite has been identified as a regular member of the suite of minerals constituting the Lower Ecca shales in Natal. In this deposit, chalybite, Fe-chlorite and illite are all found to be secondary to the chamosite component which serves as the principal mineral host for iron, even in beds containing as little as 2·25% Fe. Aspects of composition, fissility and origin are discussed.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1964

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References

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