General Information:
Chemical Formula:
PbTl(Cu,Ag)As2S5
Composition:
(Molecular Weight = 796.38 gm)
Thallium 25.66 % Tl
Copper 5.98 % Cu
Silver 3.39 % Ag
Arsenic 18.82 % As
Lead 26.02 % Pb
Sulfur 20.13 % S
Empirical Formula:
PbTlCu0.75Ag0.25As2S5
IMA Status:
Approved IMA 1968
Physical Properties:
Cleavage:
[111] Good
Color:
lead gray or black.
Density:
5.71
Diaphaniety:
Opaque
Luster:
Metallic
More details...