Calcite: High-Purity Calcium Carbonate for Food and Medical Industries 00:10:00
Eric Smithers is Managing Director of Calcite Limited. The minerals calcite, aragonite, and vaterite are naturally occurring polymorphic forms of calcium carbonate (CaCO3). At normal Earth surface pressures and temperatures, low magnesian calcites are the only stable CaCO3 phase. Calcite has a trigonal crystal system, perfect cleavage in three directions, conchoidal fracture, and a hardness of three on Moh’s scale.
