Which also called ground calcium carbonate, is produced by natural superior calcite, which has high purity and whiteness. The size ranges from under 400 mesh which is called primary products, to 3000 mesh or above, depending on your requirement. Heavy (Ground) Calcium Carbonate is widely used as filler in plastic, paint, paper-making, rubber, pharmacy, feed, daily chemical, ceramics, adhesives and ink industry. Specification: Whiteness: >93, CaCO3>98% Size: 0-3500 mesh Density: 2.70-2.95 Applications: Plastics industry Cable Industries Rigid PVC Pipes Toothpaste filling material Paints, Inks, Powder Coating Ceramic Industry Rubber Industry Glass Industry Food and pharmaceutical industry Origins: Egypt, Vietnam