Calcite, caco3 coated & uncoated Caco3 98.00% minimum Brightness : 94% min Whiteness: 97% min Humidity: 0.2% max Water demand/ml/100gm : 24% Oil absorption/ml/100gm : 26% Ph : 8+ Mgco3 0.21% maximum Al2o3 0.03% maximum Slo2 0.12 % maximum Fe2o3 0.02% maximum 25 mt/container 25 kg/bag