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Gypsum

supply and export raw material of Gypsum, Gypsum Rock, Gypsum Lumps Gypsum Powder Gypsum Rock with high quality of Gypsum Rock used for many applications

DESCRIPTION

Gypsum (CaSO4.2H2O) is a soft sulfate mineral composed of calcium sulfate dehydrate, with the chemical formula CaSO4.2H2O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire and the Nottingham alabasters of Medieval England. Mohs scale of mineral hardness, based on scratch hardness comparison, defines hardness value 2 as gypsum. It forms as an evaporate mineral and as a hydration product of anhydrite.

Chemical Specifications of Gypsum Ore

 
 Constituents %
Combined water 19.90 min
Caso4 2H2o 94.5 min
Cao 30.50 : 33.0
So3 44.0 : 46.0
Mgo 0.10 Max
Sio2+IR .............
AL2O3+Fe2O3 0.25 Max
CL 0.008 Max
AISiD INSOL RESUE 1.00 Max
Purity 92.00 Min
Whiteness 94.00
Moisture 0.03 Max