General Information:
Chemical Formula:Ca2Fe+++3(AsO4)3O2·3(H2O)
Composition:(Molecular Weight = 766.50 gm)Calcium 10.46 %
CaIron 21.86 %
FeArsenic 29.32 %
AsHydrogen 0.79 %
H Oxygen 37.57 %
O Empirical Formula: Ca2Fe3+3(AsO4)3O3·3(H2O)
Physical Properties: Cleavage:[100] Good
Color:bronze brown, yellow, yellow brown, dark brown, or black.
Density:3.5 - 3.9, Average = 3.7
Diaphaniety:Translucent to Opaque
Habits:Fibrous - Crystals made up of fibers., ,
Hardness:1.5 - Between Talc and Gypsum
Luminescence:Non-fluorescent.
Luster:Sub Metallic
Streak:ochraceous
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