... made 3. good service 4. free sample available Barite PowderBarite, barytes barium or heavy spar, a white, ... Finely ground barite is used to make a thixotropic mud for sealing oil wells during drilling. Prime white ... , a bleached barite, is used as a pigment ... barium sulfate, zinc sulfide, and zinc oxide. 1. Drilling Grade BaSO4: 90% Min. Hg: 1 PPM Max ...