... drilling fluids in oil and gas exploration which can meet API or OCMA standards. Besides, the fine chemical Barite powder is widely ... used in glass-making industry, as filler for paper, cosmetics, textiles, linoleum, rubber goods, and white ... . Moisture: 1% Max. Size: 0 - 200 MM 90% Min. 2. Chemical Grade BaSO4: 95% Min. Fe2O3: 0.5%Max. SiO2: 2 ...