Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-29T19:36:12.546Z Has data issue: false hasContentIssue false
  • English
  • Français

Abraded pyrite crystals from the Witwatersrand gold mines

Published online by Cambridge University Press:  14 March 2018

J. J. Frankel
J. J. Frankel*
Affiliation:
Department of Geology, University of Natal, Durban
Get access Rights & Permissions [Opens in a new window]

Summary

Metamorphosed dyke rocks in Witwatersrand gold mines carry pyrite crystals of unusual appearance. These crystals, particularly along the dyke margins, show curved and scratched surfaces that cut across crystal faces. The abrasion of the crystals is due to movement of dyke material under pressure. There is some suggestion of surface flow on the abraded surfaces. No deformation or granulation was obtained in laboratory experiments on pyrite crystals. Pressure shadows around the pyrite are described.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 31 , Issue 236 , March 1957 , pp. 392 - 401
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1957

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Adams, (F. D.), 1910. Journ. Geol., Chicago, vol. 18, p. 489.CrossRefGoogle Scholar
Buerger, (M. J.), 1928. Amer. Min., vol. 13, pp. 1 and 35.Google Scholar
Harker, (A.), 1889. Geol. Mag., new ser, decade 3, vol. 6, p. 396.Google Scholar
Newhouse, (W. H.) and Flaherty, (G. F.), 1930. Econ. Geol., vol. 25, p. 600.CrossRefGoogle Scholar
Parst, (A.), 1931. Amer. Min., vol. 16, p. 55.Google Scholar
Young, (R. B.), 1917. The Banket. London.Google Scholar