General Information:
Chemical Formula:
(Ag,Cu)16(As,Sb)2S11
Composition:
(Molecular Weight = 2,074.59 gm)
Copper 12.25 % Cu
Silver 62.39 % Ag
Antimony 2.93 % Sb
Arsenic 5.42 % As
Sulfur 17.00 % S
Empirical Formula:
Ag12Cu4As1.5Sb0.5S11
IMA Status:
Approved IMA 1963
Physical Properties:
Cleavage:
[???] Indistinct, [001] Distinct
Color:
black.
Density:
6.18 - 6.23, Average = 6.2
Diaphaniety:
Opaque
Hardness:
3 - Calcite
Luster:
Metallic
Streak:
black
More details...