Barite

BaSO4 - Mohs Hardness: 3 - 3 1/2.  Barite is well-known for its great range of colors and varied crystal forms and habits. It is an immensely popular mineral among collectors. Barite is easily identifiable by its heavy weight, since most similar minerals are much lighter.
Abstract/Description: BaSO4 - Mohs Hardness: 3 - 3 1/2. Barite is well-known for its great range of colors and varied crystal forms and habits. It is an immensely popular mineral among collectors. Barite is easily identifiable by its heavy weight, since most similar minerals are much lighter.
Subject(s): Colorado, United States
environmental sciences