Calcite is a calcium carbonate mineral that is most commonly found in natural calcium carbonate. Therefore, calcite is a widely distributed mineral. The crystal shapes of calcite are various, and their aggregates can be clusters of crystals, as well as granular, massive, fibrous, stalactite, earthy and so on. Knocking calcite can get a lot of square fragments, hence the name calcite.
Pure calcite (iceland stone) is colorless and transparent, relatively rare, and most of them are milky white. If it contains iron, zinc, cobalt, manganese, copper and other elements, it will appear light yellow, light red, purple, brown and black.
