Gypsum

Common sulfate mineral of great commercial importance, composed of hydrated calcium sulfate (CaSO4·2H2O). In well-developed crystals the mineral commonly has been called selenite. The fibrous massive variety has a silky luster and is called satin spar; it is translucent and opalescent and is valued for ornaments and jewelry.  One of the its by product is what we usually refer to as the Plaster of Paris which is created by heating gypsum crystals, made of calcium sulphate dihydrate, to turn them into a dry powder. When it is mixed with water it reforms into a gypsum paste which is used as a building material for wall surfacing and fireproofing. Today, it is widely used to precast and hold parts of ornamental plasterwork placed on ceilings and cornices. It is also used in medicine to make plaster casts to immobilize broken bones while they heal, though many modern orthopedic casts are made of fiberglass or thermoplastics.

The demand for plaster of Paris is projected to reach 9,315 tons and 15,003 tons by the year 2017 and 2022, respectively. This product is available for supply to any destination of the world.