Contact: wilson e-mail: cqwilson11@gmail.com cqwilson11 AT gmail DOT com Origin Origined in Guizhou Province, China, Very Famous area of Barite products, we have different grade to meet the clients demand. Please contact with us. Use: 1. as a weighting agent for drilling fluids in oil and gas exploration. 2. Used in the car, electronics, TV screen, rubber, and glass ceramics and paint industry. 3. As surface smear for photographic paper and calendered paper; as sizing agent for textile industry. 4. as clarifying agent for glass products. 5. Radiation shielding and medical applications; also used for ceramics, enamel, perfumes and pigments. Certificate of Analysis The mineral has high specific gravity to be use for increasing mud density in many types of drilling fluid systems. BaSO4: 98% Min. Density: 4.20g/ cm3 min. Ph Value: 6~10 Hg content 1 PPM max Cd content 3 PPM max Average Particle Size: 0-200mm As Soluble Calcium (Ca+2): 250.0 Max. Calcium Carbonate (CaCO3):6.0% max. Residue greater than 75 um: 3.0% max Particle less than 6 um: 30% max Moisture: 1% max.