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A Mixed-Layer Kaolin-Chlorite Structure

Published online by Cambridge University Press:  01 January 2024

G. W. Brindley  and
F. H. Gillery
G. W. Brindley
Affiliation:
The Pennsylvania State University, USA
F. H. Gillery
Affiliation:
The Pennsylvania State University, USA
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Abstract

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A mineral of chlorite-type composition, classified as a daphnite, is shown to give a series of basal x-ray reflections which are incompatible with the normal chlorite structure. Fourier analysis indicates a modified distribution of Si and O atoms. A model is suggested in which some Si atoms are displaced and linked to the adjacent brucite-type layer, producing in effect kaolin-type structural units within the chlorite structure.

Type
Article
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 2: Publication 327, University of Missouri, Columbia, Missouri, October 15-17, 1953 , February 1953 , pp. 349 - 353
Copyright
Copyright © Clay Minerals Society 1953

Footnotes

This investigation was carried out in the Physics Laboratories, The University of Leeds, England.

References

Brindley, G. W. (1951) The crystal structure of some chamosite minerals: Min. Mag., v. 29, p. 502–525.Google Scholar
Brindley, G. W., and Robinson, K. (1951) The chlorite minerals: In “X-ray identification and crystal structures of clay minerals”, Mineralogical Society of Great Britain Monograph, Chap. 6, p. 173–198.Google Scholar
Hallimond, A. F., Bannister, F. A., and Harvey, C. O. (1939) On the relation of chamosite and daphnite to the chlorite group: Min. Mag., v. 25, p. 441–465.Google Scholar