Used as a refractory material in high-temperature applications such as furnace linings due to its high melting point and resistance to thermal shock. Commonly employed in the production of heat-resistant electrical cables and as an insulating material in heating elements. Serves as an antacid and laxative in pharmaceuticals to treat indigestion and constipation. Applied in agriculture to correct magnesium deficiency in soils and reduce soil acidity. Utilized in water treatment to neutralize acidic water and remove impurities. Also functions as a filler in plastics and rubber industries to improve heat resistance and dimensional stability.