Cassiterite

 

The mineral name is derived from the term “Cassiterides,” which was applied to an island off the western coast of Europe in pre-Roman times. The primary ore of tin, this mineral is found in hydrothermal veins and pegmatites associated with granite intrusions. The chief use of tin is in the manufacture of tin plate and tern plate.

Mineral Photos courtesy of R.Weller/Cochise College