General Information:
Chemical Formula:
Tl2Cu3FeSe4
Composition:
(Molecular Weight = 971.09 gm)
Thallium 42.09 % Tl
Iron 5.75 % Fe
Copper 19.63 % Cu
Selenium 32.52 % Se
Empirical Formula:
Tl2Cu3Fe2+Se4
IMA Status:
Approved IMA 1971
Physical Properties:
Cleavage:
[001] Good, [100] Distinct
Color:
gray brown or black.
Density:
7.36
Diaphaniety:
Opaque
Hardness:
2 - Gypsum
Luster:
Metallic
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