Copper mine which works several veins in a late Tertiary volcanic massif, the Serrania de Laurani, which sticks up out of the Altiplano with elevations up to 4,400 metres. The mineralization is richer in arsenic and poorer in antimony than most of the more famous bolivian mines. The as yet unworked San Geronimo vein held 2 to 3% Cu, 150 ppm Ag, 3 to 5 ppm Au (Ahlfeld & Schneider-Scherbina, 1964).
Ref.:
- Ahlfeld, F. and Schneider-Scherbina, A. (1964): Los Yacimientos Minerales y de Hidrocarburos de Bolivia.
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Map Reference: 17°22'51"S , 67°46'30"W
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