Barite, BaSO4, has a orthorhombic crystal system with a tabular habit.

Distribution

Occurring worldwide, barite can be found throughout Europe, in the U.S., and in China.

Colville, A. A., K. Staudhammer. 1967. A refinement of the structure of barite from Cow Green Mine. American Mineralogist. 52:1877-1880.