General Information:
Chemical Formula:
(Mg,Fe+++)3(PO4)2(OH,O)·1,5(H2O)
Composition:
(Molecular Weight = 330.29 gm)
Magnesium 16.56 % Mg
Iron 12.68 % Fe
Phosphorus 18.76 % P
Hydrogen 1.14 % H
Oxygen 50.86 % O
Empirical Formula:
3(Mg0.75)3(Fe3+0.25)(PO4)2(OH)0.75O0.25·1.5(H2O)
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[001] Good
Color:
brown.
Density:
3.16
Diaphaniety:
Translucent
Hardness:
4 - Fluorite
Luster:
Vitreous (Glassy)
Streak:
brown
More details...