Widely used in the construction industry as a key component in the production of cement, mortar, and concrete. It acts as a filler and binder, enhancing the strength and durability of building materials. In the pharmaceutical sector, it serves as a dietary calcium supplement to support bone health and as an antacid to neutralize stomach acid. In the food industry, it is utilized as a food additive (E170) for fortification, pH regulation, and as a whitening agent in products like bread, cereals, and dairy. Additionally, it is employed in the paper industry as a coating and filler to improve brightness, opacity, and smoothness of paper products. In environmental applications, it is used in water treatment to neutralize acidic water and in flue gas desulfurization to reduce sulfur dioxide emissions from power plants. It also finds use in agriculture as a soil conditioner to adjust pH levels and provide essential calcium for plant growth. In the plastics and rubber industries, it acts as a filler to improve mechanical properties and reduce production costs.