Arsentsumebite

General Information:
 Chemical Formula:
Pb2Cu(AsO4)(SO4)(OH)
 Composition:
(Molecular Weight = 729.94 gm)
Copper 8.71 % Cu
Arsenic 10.26 % As
Hydrogen 0.14 % H 
Lead 56.77 % Pb
Sulfur 4.39 % S 
Oxygen 19.73 % O 
 Empirical Formula:
Pb2Cu(AsO4)(SO4)(OH)
 IMA Status:
Approved IMA 1966
Physical Properties:
 Cleavage:
None
 Color:
yellow green or emerald green.
 Density:
6.46
 Diaphaniety:
Transparent to Opaque
 Hardness:
4-5 - Fluorite-Apatite
 Luster:
Adamantine - Metallic
 Streak:
light green
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