Mangano Calcite, also known as Manganoan Calcite, is a manganese calcium carbonate mineral and member of the Calcite family. Its color can range from light to dark pink depending on the amount of Manganese in it. It's common to have white inclusions of Calcite within this crystal, sometimes in a banding formation. This mineral was first discovered in 1846 by A. Breithaupt in Banská, Štiavnica, Slovakia. He named it in reference to the inclusion of Manganese found within. It is also flourescent!