Calcium Carbonate (CaCO 3) exists in nature as a white calcite mineral found in limestone and other rocks. Processed Calcium Carbonate takes several forms, including natural or stearic acid coated Calcium Carbonate powder and pre-dispersed slurry. Both Ground Calcium Carbonate (GCC) and Precipitated Calcium Carbonate (PCC) are widely used in many industries as one of the raw material components for the production of, among others, filler masterbatch, pvc pipes, plastics, lates gloves, rubber, paints & coatings, paper, plastic films and etc.