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On face- and zone-symbols referred to hexagonal axes

Published online by Cambridge University Press:  14 March 2018

Max H. Hey
Max H. Hey*
Affiliation:
Mineral Department of the British Museum of Natural History
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Extract

The axial system of Bravais, with three co-planar axes at 120°C to one another and a fourth at right angles to them is almost universally adopted for the description of crystals based on the hexagonal prism as unit cell. But it does not seem to have been generally recognized that the use of these axes entails some complications in respect of face- and zone-symbols. These it is the purpose of the present note to consider.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 22 , Issue 129 , June 1930 , pp. 283 - 290
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1930

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