General Information:
Chemical Formula:
(Ag,Cu,Fe)9(Se,S)8
Composition:
(Molecular Weight = 1,342.22 gm)
Iron 3.74 % Fe
Copper 12.78 % Cu
Silver 43.40 % Ag
Selenium 35.30 % Se
Sulfur 4.78 % S
Empirical Formula:
Ag5.4Cu2.7Fe2+0.9Se6S2
IMA Status:
Approved IMA 1982
Physical Properties:
Color:
bronze brown.
Density:
5.39
Diaphaniety:
Opaque
Hardness:
2.5 - Finger Nail
Luster:
Metallic
More details...