Calcium carbonates are chemical compounds made up of calcium, carbon, and oxygen, with the formula CaCO₃. They are commonly found in nature, primarily in rocks like limestone and marble, and are a major component of shells in marine organisms. Calcium carbonates are widely used in various industries, including construction, agriculture, and food production. In addition to their industrial applications, calcium carbonates play a vital role in the environment. They help regulate acidity in soil and water, making them essential for plant growth. Furthermore, they are used in dietary supplements to provide calcium, an important mineral for bone health.