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The structure of kaolinite

Published online by Cambridge University Press:  14 March 2018

G. W. Brindley  and
Keith Robinson
G. W. Brindley
Affiliation:
Physics Laboratories, The University of Leeds
Keith Robinson
Affiliation:
Physics Laboratories, The University of Leeds
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Extract

A possible structure for kaolinite was first put forward by Pauling (1930) in a paper dealing generally with the structures of layer-type minerals, chlorites, micas, &c. He suggested that the structure consisted of a sheet of Si–O tetrahedra arranged in a hexagonal network with a superposed sheet of Al–(O,OH) octahedra, the two together forming a layer of composition Al2Si2O5(OH)4 (fig. 2). Ross and Kerr (1931), from a detailed microscopic study of the kaolin minerals, concluded that the symmetry of kaolinite is ‘probably monoclinic’. The first attempt at a detailed structure analysis was made by Gruner (1932a) from X-ray powder photographs. The reflections, some 40 altogether, were indexed on the basis of a monoclinic cell with a 5·14, b 8·90, c 14·51Å., β 100° 12′.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 27 , Issue 194 , September 1946 , pp. 242 - 253
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1946

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References

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