General Information:
Chemical Formula:
CaFe+++4(SO4)6(OH)2·19(H2O)
Composition:
(Molecular Weight = 1,216.15 gm)
Calcium 3.30 % Ca
Iron 18.37 % Fe
Hydrogen 3.32 % H
Sulfur 15.82 % S
Oxygen 59.20 % O
Empirical Formula:
CaFe3+4(SO4)6(OH)2·19(H2O)
IMA Status:
Approved IMA 1961
Physical Properties:
Color:
brownish yellow or grayish yellow.
Density:
2.22
Diaphaniety:
Transparent to Translucent
Hardness:
2.5-3 - Finger Nail-Calcite
Luster:
Pearly
Streak:
yellow white
More details...