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Identification of the Polytype-like Modifications of Ca3GeO5 by Powder Diffraction

Published online by Cambridge University Press:  10 January 2013

Yoshio Takeuchi  and
Fumito Nishi
Yoshio Takeuchi
Affiliation:
Mineralogical Institute, Faculty of Science, University of Tokyo, Hongo, Tokyo 113, Japan
Fumito Nishi
Affiliation:
Mineralogical Institute, Faculty of Science, University of Tokyo, Hongo, Tokyo 113, Japan
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Abstract

Features of the powder diffraction patterns of known polytype-like modifications of Ca3GeO5, such as 2H, 9R and 24R types, and a monoclinic polymorph have been studied by means of the patterns calculated based on their crystal structures. The result has provided keys to identify them when they coexist in the same synthetic product. Accounts have been given on the crystallographic features of the building layer and rules for layer stackings of the modifications in general. Any modification may then be constructed to predict its powder diffraction pattern.

Type
Research Article
Information
Powder Diffraction , Volume 1 , Issue 1 , March 1986 , pp. 44 - 49
Copyright
Copyright © Cambridge University Press 1986

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