a white to grayish mineral, barium carbonate, BaCO3, occurring in crystals and masses: a minor ore of barium.
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How to use witherite in a sentence
witherite, the barium carbonate, is a much rarer mineral but is found with barite in some veins.The Economic Aspect of Geology | C. K. Leith
British Dictionary definitions for witherite
a white, grey, or yellowish mineral consisting of barium carbonate in orthorhombic crystalline form: occurs in veins of lead ore. Formula: BaCO 3
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012