General Information:
Chemical Formula:
Tl6(Fe,Ni,Cu)25S26Cl
Composition:
(Molecular Weight = 3,510.71 gm)
Thallium 34.93 % Tl
Iron 31.82 % Fe
Copper 1.81 % Cu
Nickel 6.69 % Ni
Sulfur 23.75 % S
Chlorine 1.01 % Cl
Empirical Formula:
Tl6Fe2+20Ni4CuS26Cl
IMA Status:
Approved IMA 1979
Locality:
Oktyabr mine, Norilsk, Russia.
Name Origin:
Named for the composition (Tl, Fe, Ni, S).
Physical Properties:
Color:
bronze brown or greenish brown.
Density:
5.26
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., ,
Hardness:
1-1.5 - Talc or a little harder
Luster:
Metallic
More details...