The Hotazel outlier is situated in a graben to the east of Black Rock and contains a very high grade ore (60 to 70 per cent average). Hausmannite with lesser amounts of other minerals and a very low carbonate component are the main constituents of the Hotazel supergrade ores.
References:
http://www.edu.uni-klu.ac.at/~mmessner/sites/rsa/kuruman/kuruman.htm
Mineral List:25 entries listed. 24 valid minerals.
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