Used as a refractory material in furnace linings due to its high thermal stability and resistance to basic slags. Commonly employed in the production of heat-resistant bricks and crucibles. Acts as an electrical insulator in heating elements while efficiently conducting heat. Widely used in agriculture and animal feed to correct magnesium deficiencies in soil and livestock. Employed in construction as a component in fireproofing and insulating boards. Utilized in pharmaceuticals as an antacid and laxative to treat acidity and constipation. Also serves as a drying agent and catalyst support in chemical processes.