Widely used in the construction industry as a key component in cement and concrete, enhancing structural strength and durability. Commonly added to plastics and polymers to improve mechanical properties, reduce material costs, and increase stiffness. Serves as a filler in paper production, improving brightness, opacity, and printability while reducing the amount of wood pulp needed. Used in agriculture to neutralize acidic soils and provide a source of calcium for plant nutrition. Employed in the pharmaceutical industry as an antacid to relieve indigestion and as a dietary supplement for calcium intake. Utilized in environmental applications to reduce sulfur dioxide emissions in flue gas desulfurization processes. Found in toothpaste formulations as a mild abrasive to help remove plaque and surface stains from teeth.