RhodochrositeN'Chwaning I Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
Photo: Rob Lavinsky A closed manganese mine owned by Assoc. Manganese Mines of South Africa, Ltd.
The north-western areas, where mining began, were noted for the presence of exceptional rhodochrosite specimens associated with mainly manganite and drusy secondary quartz. The ore consisted here mainly of the Hotazel Supergroup. Later mining shifted to the southern areas. Here well crystallized hausmannite, barite, hydroxyapophyllite, inesite, brucite and celestine where found and rhodochrosite became a rarity.
Mineral List
50 entries listed. 49 valid minerals.
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References
Mining Annual Review (1985): 90.
Rocks & Minerals (1986): 61: 7.
Cairncross, B. and R. Dixon (1995) Minerals of South Africa.
Cairncross, B., Beukes, N. and Gutzmer, J. (1997): The Manganese Adventure – The South African Manganese Fields. Associated Ore & Metal Corporation Limited, Johannesburg, Republic of South Africa.
Cairncross, B. & Balayer, P. (2007): Neufund: Shigait aus den Kalahari-Manganfeldern, Südafrika. LAPIS 32 (4): 23-26 + 50.
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