General Information:
Chemical Formula:
(Ca,U++++,Fe+++)(PO4,SO4)·2(H2O)
Composition:
(Molecular Weight = 232.32 gm)
Calcium 10.35 % Ca
Uranium 30.74 % U
Iron 2.40 % Fe
Phosphorus 10.00 % P
Hydrogen 1.74 % H
Sulfur 3.45 % S
Oxygen 41.32 % O
Empirical Formula:
Ca0.6U0.3Fe3+0.1(PO4)0.75(SO4)0.25·2(H2O)
IMA Status:
Approved IMA 1982
Physical Properties:
Cleavage:
None
Color:
green yellow or light yellow.
Density:
3.8 - 4.2, Average = 4
Diaphaniety:
Translucent
Hardness:
3-4 - Calcite-Fluorite
Luster:
Greasy (Oily)
More details...