Calcium carbonate is quite a common mineral that can be found throughout the world. In fact, it’s estimated that about 4% of the world’s crust is covered by calcium carbonate. Calcium carbonate can take many forms such as limestone, chalk, marble, and others. It forms from the sedimentation of shells, corals, shellfish over millions of years. Calcium carbonate is an extremely versatile mineral and has numerous applications and uses in various industries, including coating and compounding.