Carminite

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
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