Calcium Carbonate Quarry
Calcium Carbonate Quarry. Limestone: The Calcium Carbonate Chemical Geology. Limestone, as used by the minerals industry, is any rock composed mostly of calcium carbonate (CaCO 3). Although limestone is common in many parts of the United States, it is critically absent from some. Limestone is used to produce Portland cement, as aggregate in concrete and asphalt, and in an . BCCF Members .