Bismuthinite in calcite
description: LOCALITY: Biggenden Mine, Queensland, Australia 2 1/2" ac The finest examples of bismuthinite were found at Biggenden during the 1980's. This is a high quality specimen. It has not been acid etched. The back of this specimen is rich in bismuthinite. If this specimen was worked on in a lab, it could be greatly improved.
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