Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). Calcite connects the emotions with the intellect. It is an excellent stone when studying the arts and sciences.The properties of calcite make it one of the most widely used minerals. It is used as a construction material, abrasive, agricultural soil treatment, construction aggregate, pigment, pharmaceutical and more. It has more uses than almost any other mineral.