Formed in hydrothermal veins, this mineral comes in tin-white, tarnishing to dark grey or black. The name is derived from a Greek word meaning “masculine,” which stems from the belief that metals were different sexes.
Minerals
Formed in hydrothermal veins, this mineral comes in tin-white, tarnishing to dark grey or black. The name is derived from a Greek word meaning “masculine,” which stems from the belief that metals were different sexes.
Mineral Photos courtesy of R.Weller/Cochise College