a. An orthorhombic mineral, 4[BaSO4 ] ; has nearly pseudocubic cleavage; occurs as interpenetrant masses of crystals with sand and clay (desert roses); sp gr, 4.5; in veins or in residual masses on limestone; the principal source of barium. Syn: barytes; dreelite; heavy spar; cawk.
b. The mineral group anglesite, barite, and celestine.
Source: Dictionary of Mining, Mineral, and Related Terms











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