... High Grade Barite Powder 97% for Painting BaSO4: 97%Min Whiteness:88% Size:300Mesh,525Mesh,2500Mesh Barite PowderBarite, barytes barium or heavy spar, ... as satisfactory as blanc fixe, a chemically precipitated barium sulfate, or lithopone, a mixture of barium sulfate, zinc sulfide, and zinc oxide. 1. ... - 200 MM 90% Min. 140+30 3. Paint Grade BaSO4: 97% Min. S. G.: 4.30 Min. Whiteness: 90% Min. ...