The composite gold-antimony vein deposit at Kharma (Bolivia)

The Kharma antimony deposit in the Cordillera Oriental, Bolivia, is representative of vein-type antimony deposits that have stibnite as the only mineral of economic interest and a low null content. In this deposit, recovery of null is difficult because it is not known exactly where the null is located within the ore shoots or the manner in which it is present in the main minerals of the deposit. Vein mineralization of this type is widespread,...