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The Micaceous Mineral of the Yorkshire Fireclays

Published online by Cambridge University Press:  14 March 2018

R. W. Grimshaw ,
A. G. Sadler  and
A. L. Roberts
R. W. Grimshaw
Affiliation:
The Leeds Fireclay Company Limited, Farnley, Leeds
A. G. Sadler
Affiliation:
Department of Mines and Technical Surveys, Mines Branch, Ottawa, Canada
A. L. Roberts
Affiliation:
Houldsworth School of Applied Science, The University of Leeds
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Abstract

Pure samples of the micaceous component of Yorkshire fireclays have been separated. Examination of these by chemical, optical, X-ray, and thermal methods indicates that the material is in all likelihood an intimate mixture (but not an interstratification) of mica and a kaolintype mineral—probably the b/3 disordered kaolinite commonly found in fireclays. The evidence also suggests that this kaolin-type mineral is the end-product of weathering of the mica, and a possible mechanism is suggested.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 5 , Issue 28 , December 1962 , pp. 110 - 127
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1962

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References

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