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Some relationships between the reflectivities of sulphide ore-minerals

Published online by Cambridge University Press:  14 March 2018

F. Coles Phillips
F. Coles Phillips*
Affiliation:
Department of Mineralogy and Petrology, University of Cambridge
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Extract

Since the early work of Dmde and others on the reflection of light by opaque crystalline media, little progress has been made in the direct determination of the indices of refraction and absorption for such substances. Interest in the optical properties of the opaque minerals, however, has been greatly stimulated by the rapid development in the last few years of the methods of ore-microscopy first brought into prominence by Campbell in 1906. Full theoretical discussions have been given recently by Berek, Koenigsberger, and others, but the only quantitative measure feasible in routine microscopy at present is that of the reflectivity.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 23 , Issue 143 , December 1933 , pp. 458 - 462
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1933

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References

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