Calcium Carbonate (CaCO3)

Calcium carbonate (CaCO₃) is a widespread natural compound found in minerals like limestone, chalk, and marble. It consists of calcium, carbon, and oxygen atoms bonded together. It serves as a key material in construction (e.g., cement, building blocks), as an antacid to relieve stomach acid, and as a dietary supplement for calcium intake. Additionally, it's used in manufacturing paper, paint, plastics, and as a filler in various products. Calcium carbonate is also a primary component of marine shells and coral, playing a vital role in natural geological and biological processes.