General Information:
Chemical Formula:
(Cu,Zn,Ag)12(As,Sb)4(Se,S)13
Composition:
(Molecular Weight = 2,042.97 gm)
Zinc 11.52 % Zn
Copper 22.40 % Cu
Silver 6.34 % Ag
Antimony 5.96 % Sb
Arsenic 11.00 % As
Selenium 37.68 % Se
Sulfur 5.10 % S
Empirical Formula:
Cu7.2Zn3.6Ag1.2As3SbSe9.75S3.25
IMA Status:
Approved IMA 1982
Physical Properties:
Cleavage:
None
Color:
gray or steel gray.
Density:
5.75
Diaphaniety:
Opaque
Hardness:
3.5-4 - Copper Penny-Flourite
Luster:
Metallic
Streak:
white
More details...