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The structure of aragonite

Published online by Cambridge University Press:  14 March 2018

Serge I. Tomkeieff
Serge I. Tomkeieff*
Affiliation:
Geological Department, Armstrong College, Newcastle-upon-Tyne
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Extract

We are unable to observe crystalline structure directly, and can only infer it by observation of the physical and chemical properties possessed by a crystal. It is quite reasonable to suppose that every vectorial property possessed by a crystal is dependent upon its leptonic structure. The X-ray method, which has produced such a revolutionary change in our Knowledge of crystal-structure, is not sufficient in some cases for the determination of leptonic structure. The X-ray spectral analysis gives only the spacings between the atomic planes of a crystal. The application of the method of intensities, which was so successful in the case of simple cubic crystals, may not be so in the case of crystals of a Inore complex chemical composition and of a lower symmetry. It is thus desirable to combine several methods and so approach the problem from different directions.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 20 , Issue 110 , September 1925 , pp. 408 - 434
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1925

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References

Page 408 note 1 The term ‘leptonic’ (λ∊πós, small, fine) was suggested by F. Rinne (Das feinbauliche Wesen der Materio nach dem Vorbildo der Kristalle. Berlin, 1922. Engl. transl, by W. S. Stiles, London, 1924). [Min. Abstr., vol. 2, p. 414.]

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