Rapidcreekite

General Information:
 Chemical Formula:
Ca2(SO4)(CO3)·4(H2O)
 Composition:
(Molecular Weight = 308.29 gm)
Calcium 26.00 % Ca
Hydrogen 2.62 % H 
Carbon 3.90 % C 
Sulfur 10.40 % S 
Oxygen 57.09 % O 
 Empirical Formula:
Ca2(SO4)(CO3)·4(H2O)
 IMA Status:
Approved IMA 1984
Physical Properties:
 Cleavage:
[010] Perfect, [100] Good
 Color:
colorless or white.
 Density:
2.21
 Diaphaniety:
Transparent
 Hardness:
2 - Gypsum
 Luster:
Vitreous (Glassy)
 Streak:
white
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