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Economic Geology; August 1958; v. 53; no. 5; p. 577-597
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Manganese ores from the Kuruman District, Cape Province, South Africa

J. J. Frankel

Formation of bedded manganese deposits in the Kuruman area, South Africa, is attributed to near-surface enrichment by circulating meteoric waters of a slightly manganiferous limestone zone intercalated in late Precambrian banded ironstones of the upper Griquatown series. Braunite-or cryptomelane-rich ores predominate, but masses of crystalline hausmannite and a few jacobsite boulders are also present.

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 South African Journal of GeologyHome page
J. Gutzmer, J. Gutzmer, and N. J. Beukes
Asbestiform manjiroite and todorokite from the Kalahari manganese field, South Africa
South African Journal of Geology, December 1, 2000; 103(3-4): 163 - 174.
[Abstract] [Full Text] [PDF]


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