Calcite Calcite mineral information and data. Mindat.org
Calcite is best recognized by its relatively low Mohs hardness (3) and its high reactivity Elmwood mine, Carthage, Central Tennessee BaFPbZn District, Smith Co., An essential component of rock names highlighted in red, an accessory . Bassett, W.A. (1972) Crystal structures of the high pressure phases of calcite.