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Dickite from the Witwatersrand gold mines

Published online by Cambridge University Press:  14 March 2018

J. J. Frankel
J. J. Frankel*
Affiliation:
University of Natal, Durban, South Africa
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Extract

The occurrence of dickite in the gold-bearing rocks of the Witwatersrand system was first reported by Mr. H. C. M. Whiteside. In addition, among the many mineral samples given to me by students of the Witwatersrand Technical College, Johannesburg, were several dickite specimens from mines all along the Witwatersrand area. Dickite may therefore be regarded as fairly widespread in the rocks of at least the Main-Bird series, although not in large quantity.

The only occurrence of which a detailed record is available is that from the Daggafontein mine. Little is known of the other samples except from the immediate mineral associations. It is, however, clear that all the occurrences are of hydrothermal origin.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 28 , Issue 205 , June 1949 , pp. 582 - 586
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1949

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References

page 582 note 1 Whiteside, H. C. M., 1941. An unusual suite of minerals from a rug in a quartz vein in the Kimberley series, Daggafontein mines, Ltd. Trans. Geol. Soc. South Africa, 1942, vol. 44 (for 1941), pp. 121–126. [M.A. 9–65.]Google Scholar

page 583 note 1 Dick, A. B., On kaolinite. Min. Mag., 1888, vol. 8, pp. 15–27. Supplementary notes on the mineral kaolinite. Ibid., 1908, vol. 15, pp. 124–127.CrossRefGoogle Scholar

page 583 note 2 Ross, C. S. and Kerr, P. F.. The kaolin minerals. Prof. Paper U.S. Geol. Surv., 1931, no. 165-E. pp. 151–176. [M.A. 5–359.]Google Scholar

page 584 note 1 Determinations made on a sample kindly supplied by Dr. V. L. Bosazza some years back.

page 585 note 1 Frankel, J. J., On silicates and dusts from the Witwatersrand gold mines. Journ. Chem. Metall. Mining Soc. South Africa, 1944, vol. 44, pp. 169–177. [M.A. 9–103.]Google Scholar