Calcium Carbonate - alpapowder
Calcium carbonate (CaCO 3), which occurs primarily in the form of the minerals calcite and aragonite, is one of the most prevalent compounds on Earth.Calcium carbonate is not only the main component of marble, limestone and dolomite, it is also found in bones and teeth as well as the exoskeleton of crustaceans, coral, muscles, snails and protozoa.