... be used in plastic, rubber, paper and paint industries. Calcium carbonate can be used in plastic, rubber, paper and paint industries ... nontoxic.specifications:Mesh: from 325 mesh to 5000 meshwhiteness: 94-99%D50: 10-2.5%CACO3: 98%MGO:0.16FE2O3:0 ... -1080, CA-1500,CA-2800,CA-6800,CA-9800 Calcium Carbonate