A widespread colorless, white, or yellowish mineral.

Uses
Blackboard chalk
Cement
Drywall
Plaster, a construction material
Dental modes
Surgical casts
Paint filler
Toothpaste
Gesso
Molds for Casting metals
Agricultural soil amendment
Solidifying earth (cast earth construction)
Tofu coagulation
Improving mineral content of brewing water
Dietary calcium additives in breads and cereals
Pharmaceuticals
Desiccant - anhydrous calcium sulfate (anhydrite) is sold under the brand name Drierite
Burtonisation

Related Topics: decorating gypsum, gypsum rock, gypsum plaster, ceiling gypsum, gypsum use, gypsum picture, gypsum powder