Chemical Formula: CaSO4·2(H2O)
Help on Composition: Composition: Molecular Weight = 172.17 g
 
Hydrogen 2.34 % H 20.93 % H2O 0.00 %
Oxygen 55.76 % O 0.00 % 0.00 %
Sulfur 18.62 % S 46.50 % SO3 0.00 %
Calcium 23.28 % Ca 32.57 % CaO 0.00 %


100.00 % 100.00 %
 
Help on Empirical Formula: Empirical Formula: Ca(SO4)·2(H2O)
Help on Environment: Environment: Sedimentary evaporite deposits
Help on Locality: Locality: Numerous localities worldwide. Naica, Chihuahua, Mexico.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, gyps meaning "burned" mineral. Selenite from the Greek in allusion to its pearly luster (moon light) on cleavage fragments
Help on Synonym: Synonym: Alabaster
Selenite
Satin Spar