General Information:
Chemical Formula:
Bi4(S,Se)3
Composition:
(Molecular Weight = 967.29 gm)
Bismuth 86.42 % Bi
Selenium 6.12 % Se
Sulfur 7.46 % S
Empirical Formula:
Bi4S2.25Se0.75
IMA Status:
Approved IMA 1959
Physical Properties:
Cleavage:
[???] Perfect
Color:
lead gray.
Density:
7.8
Diaphaniety:
Opaque
Hardness:
2 - Gypsum
Luster:
Metallic
Streak:
dark gray
More details...