General Information:
Chemical Formula:
PbFe+++2(AsO4)2(OH)2
Composition:
(Molecular Weight = 630.75 gm)
Iron 17.71 % Fe
Arsenic 23.76 % As
Hydrogen 0.32 % H
Lead 32.85 % Pb
Oxygen 25.37 % O
Empirical Formula:
PbFe3+2(AsO4)2(OH)2
Physical Properties:
Cleavage:
[100] Distinct
Color:
carmine red or reddish brown.
Density:
5.22
Diaphaniety:
Translucent
Hardness:
3.5 - Copper Penny
Luster:
Vitreous - Pearly
Streak:
reddish yellow
More details...