Coated Calcium Carbonate is produced by surface coating the Regular Calcium Carbonate slurry with Fatty Acids (Stearic Acid) and Titanate Coupling Agent. The particle size, as well as the crystal form, is controlled by temperature, concentration of reactants and time. Calcium Carbonate CaCO3 (Coated) is a fine powder with good dispersion properties. It is manufactured from a high purity white marble.