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The micaceous minerals in two indian clays

Published online by Cambridge University Press:  14 March 2018

S. K. Guha  and
S. Sen
S. K. Guha
Affiliation:
Central Glass and Ceramic Research Institute, Calcutta, India
S. Sen
Affiliation:
Central Glass and Ceramic Research Institute, Calcutta, India
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Abstract

Two clays of the kaolinite type, one from Bihar and the other from Kerala, were each separated into particle-size fractions greater than and smaller than 1·4 µ.e.s.d. X-ray diffraction, differential thermal analysis, cation-exchange capacity and moisture absorption determinations and chemical analysis of the fractions showed that the micaceous mineral was concentrated in the fine fraction of one whereas it was mostly in the coarse fraction of the other. The evidence suggests that the mineral in the former belongs to the illite group and in the latter to the mica group.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 5 , Issue 30 , December 1963 , pp. 319 - 327
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1963

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