Ferrisymplesite

General Information:
 Chemical Formula:
Fe+++3(AsO4)2(OH)3·5(H2O)
 Composition:
(Molecular Weight = 586.48 gm)
Iron 28.57 % Fe
Arsenic 25.55 % As
Hydrogen 2.23 % H 
Oxygen 43.65 % O 
 Empirical Formula:
Fe3+3(AsO4)2(OH)3·5(H2O)
Physical Properties:
 Color:
yellow brown or resin brown.
 Density:
2.88
 Diaphaniety:
Transparent to Translucent
 Habits:
Fibrous - Crystals made up of fibers., ,
 Hardness:
2.5 - Finger Nail
 Luminescence:
Non-fluorescent.
 Luster:
Resinous
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