... can supply Calcite Powder,100-1250 mesh.purity:50%,86%,94%,96%,99% 1. The superfine heavy calcium carbonate is select high ... quality system standard for the production.2. Product albedo high (96 degrees above), less impurity (CaCO3 content more than 99 ... chemical formula for CaCO3, theoretical chemical composition CaO56.04 %, CO243.96 for: crystal department of tripartite %,, often with a complex ...