Alabaster (Gypsum) by Advance Minerals & Chemicals Co ...
Gypsum is the most common sulfate mineral Gypsum uses include: manufacture of wallboard, cement, plaster of Paris, soil conditioning, a hardening retarder in portland cement. Varieties of gypsum known as "satin spar" and "alabaster" are used for a variety of ornamental purposes; however, their low hardness limits their durability.