Sylvite

Sylvite is an evaporite mineral which can be distinguished from halite by its bitter taste. It has the same origin, mode of occurrence, and associations as halite, but is much rarer. It was named after Francois Sylvius de le Boe (1614-1672), a physician and chemist of Leyden, Netherlands.

Mineral Photos courtesy of R.Weller/Cochise College