General Information:
Chemical Formula:
Tl4Hg3Sb2As8S20
Composition:
(Molecular Weight = 2,903.50 gm)
Thallium 28.16 % Tl
Mercury 20.73 % Hg
Antimony 8.39 % Sb
Arsenic 20.64 % As
Sulfur 22.09 % S
Empirical Formula:
Tl4Hg3Sb2As8S20
Environment:
Itergrwon with realgar and orpiment.
Locality:
Allchar, near Rozsdan, northwest of Salonika, Macedonia, Greece.
Physical Properties:
Cleavage:
[010] Good
Color:
gray black or dark red.
Density:
5.3 - 2.3, Average = 3.8
Diaphaniety:
Opaque to subtranslucent
Hardness:
3.5 - Copper Penny
Luster:
Metallic
Streak:
light red
More details...