Sulfosalts

Sulfosalts are rare compounds of one or more metallic elements with sulfur plus a semimetal (antimony, arsenic, bismuth). Sulfosalt minerals are soft, heavy, and brittle, and generally occur in small crystals or masses. They form in low-temperature environments and are among the last minerals to develop in epithermal veins. Chesterman, p. 383

# Sources[edit]

* Chesterman, Charles W. The Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf: New York (1987)