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Meta-torbernite I, its physical properties and relation to Torbernite

Published online by Cambridge University Press:  14 March 2018

A. F. Hallimond
A. F. Hallimond*
Affiliation:
Museum of Practical Geology, London
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Extract

In a general account of the properties of torbernite given by the present author in this magazine in 1916 it was shown that the transition from torbernite to the first dehydrationproduct, known as meta-torbernite I (meta-kupferuranit), was dependent on the temperature and the vapour-pressure, and that the boundary, of the stability area lay only a little outside the range of ordinary atmospheric conditions; the transition-point of torbernite in contact With water was determined as 75° C.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 19 , Issue 89 , May 1920 , pp. 43 - 47
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1920

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References

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8. A. E., Tutton, Potassium, rubidium, and caesium salts…double sun phates… Journ. Chem. Soc. 1896, vol. 69 (1), p. 344.Google Scholar
4. Y., Buchholz, Das Waasergehalt des Kupferuranits. Centralblatt Min., 1903, p. 362.Google Scholar
5. A. F., Hallimond, The crystallography and dehydration of torbernite. Mineralog. Mag., 1916, vol. 17, p. 326.Google Scholar
6. N. I., Bowen, Abnormal birefringence of torbernite. Amer. Journ. Sci., 1919, vol. 48, p. 195.Google Scholar