Calcium Carbonate | Marble | Mineral
What is Calcium Carbonate / Calcite (CaCo3) Calcite is a carbonate mineral and the most stable of polymorph of Calcium Carbonate (CaCO3). The other polymorphs are the minerals aragonite and vaterite. Aragonite will change to calcite (CaCO3) at 380470 degrees Celcius and vaterite is even less stable.