Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite.
Gypsum (CaSO4.2H2O) is very similar to Anhydrite (CaSO4).
The chemical difference is that gypsum contains two waters and anhydrite is without water. 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.
Gypsum has the same chemical composition as the mineral Anhydrite, but contains water in its structure whereas Anhydrite does not.
Many Anhydrite specimens absorb water, transforming into the more common Gypsum.
Some Gypsum specimens show evidence of this, containing growths of crumpling layers that testify to their expansion from the addition of water.
We are supply all type of Gypsum, Ore Gypsum or for Industrial or Agricultural, and also Gypsum Board different types.