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The surface structure of crystals

Published online by Cambridge University Press:  14 March 2018

A. F. Seager*
Affiliation:
Department of Geology, Birkbeck College, University of London

Extract

C . W. Bunn and H. Emmett have observed the spreading, of multi-molecular layers on growing crystals of artificial compounds, and have suggested that deposition takes place on the high-index surfaces at the edges of the layers. Their work led the author to examine crystals of several mineral species for evidence of the mechanism of growth, and this account is the result of a preliminary survey of the growth structures found.

So many growth structures could be seen with the naked eye or with a hand-lens that it was decided to use low magnifications in order that comparatively large areas of the crystal faces could be examined and photographed at one time. A metallurgical microscope with a prism reflector and 1-inch objective was used for the observations and most of the photography. This work is qualitative rather than quantitative, but it is intended to carry out a quantitative examination of the same specimens later.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1953

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References

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page 4 note 1. The use of face or form symbols in this paper to describe directions on a crystal face does not necessarily imply that those faces or forms are present on the crystal.

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