Chemical Formula:
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CaSO4·2(H2O) |
Composition:
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Molecular Weight = 172.17 g |
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Hydrogen |
2.34 % |
H |
20.93 % |
H2O |
0.00 % |
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Oxygen |
55.76 % |
O |
0.00 % |
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0.00 % |
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Sulfur |
18.62 % |
S |
46.50 % |
SO3 |
0.00 % |
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Calcium |
23.28 % |
Ca |
32.57 % |
CaO |
0.00 % |
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|
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100.00 % |
|
100.00 % |
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Empirical Formula:
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Ca(SO4)·2(H2O) |
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Environment:
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Sedimentary evaporite deposits |
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Locality:
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Numerous localities worldwide. Naica, Chihuahua, Mexico.. Link to
MinDat.org
Location Data.
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Name Origin:
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From the Greek, gyps meaning "burned" mineral. Selenite from the Greek in allusion to its pearly luster (moon light) on cleavage fragments |
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Synonym:
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Alabaster |
| Selenite |
| Satin Spar |
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