Mica Powder (H.S.Code 2525.2000) CAS # 12001-26-2 SiO2 :40-50% Al2O3 :28-38% Fe2O3 :0-7% K2O :8-13% MgO :0.8%Max. Moisture :1.5%Max. Sand :1.5%Max. Specific Gravity :2.7-3.0 g/cm3 Whiteness :70-75%, 80% Min. Size : 20,40,60,100,200,250,325mesh. Packing : 25kgs,50kgs,550kgs,650kgs big bag. Uses : For paint industry, construction industry, Fire-retardant, cosmetic, coating,extinguishant, welding rod,ceramic, Plastic electrical insulator, papermaking, rubber, pearly-lustre Pigment industry etc.