Carbonate may refer to: Places Carbonate, Colorado, a ghost town in Garfield County, Colorado Carbonate, Lombardy, a comune in the Province of Como Carbonate, South Dakota, a ghost town in Lawrence County, South Dakota Science and technology Carbonate, a salt containing the carbonate anion, Carbonate minerals, a class of minerals containing the carbonate anion Carbonate rocks Carbonate ester, an of carbonic acid, general structure R1O(C=O)OR2 See also Carbonation