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The crystal structure of phlogopite by neutron diffraction

Published online by Cambridge University Press:  05 July 2018

J. H. Rayner
J. H. Rayner*
Affiliation:
Pedology Department, Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ
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Summary

The positions of all the atoms including hydrogen have been found by a partial three-dimensional single-crystal neutron-diffraction study in which about one-third of the reflections in the reciprocal sphere to 1·5 Å were measured. The hydroxyl group is perpendicular to the plane of the silicate sheets. The fluorine content of this phlogopite is enough to occupy 25 % of the (OH, F) sites. Site occupancy refinement suggests that there is a small deficiency of hydrogen at the remaining sites and that the two crystallographically different octahedral sites are fully occupied by the same proportions of Mg, Ti, Fe, and Ca.

Type
Research Article
Information
Mineralogical Magazine , Volume 39 , Issue 308 , December 1974 , pp. 850 - 856
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1974

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