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A hydrous mica from Yorkshire fireclay

Published online by Cambridge University Press:  14 March 2018

K. Carr ,
R. W. Grimshaw  and
A. L. Roberts
K. Carr
Affiliation:
Fuel Department, University of Leeds
R. W. Grimshaw
Affiliation:
Fuel Department, University of Leeds
A. L. Roberts
Affiliation:
Fuel Department, University of Leeds
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Extract

Recent investigations into the mineralogical constitution of fireclays have revealed the presence of a micaceous mineral in all samples examined. Naturally-occurring clays may contain up to 30 % of this type of mineral, and exceptional concentrations have been found in the Yorkshire area. Tests on the purified mineral from this source have proved it to be a hydrous mica of an unusually large grain,size.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 30 , Issue 221 , June 1953 , pp. 139 - 144
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1953

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References

page 139 note 1 Carr, K., Qrimahaw, R. W., and Roberts, A. L., Trans. Brit. Ceramic Soc., 1952, vol. 51, p. 334.Google Scholar

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page 141 note 2 Jakob, J., Zeits. Krist., 1925, vol. 62, p. 443 [M.A. 3-81].Google Scholar

page 142 note 1 Brammall, A., Leech, J. G. C., and Bannister, F. A., Min. Mag., 1937, vol. 24, p. 507.CrossRefGoogle Scholar

page 143 note 1 Brown, G. and Norrish, K., Min. Mag., 1952, vol. 29, p. 929.CrossRefGoogle Scholar