General Information:
Chemical Formula:Cu2HgSnS4
Composition:(Molecular Weight = 574.66 gm)Copper 22.12 %
CuTin 20.66 %
SnMercury 34.91 %
HgSulfur 22.32 %
S
Empirical Formula: Cu2HgSnS4
Environment:In veins cutting carboniferous black schists and limestones in a mercury deposit. The mercury dominant analog of cernyite and stannite.
IMA Status:Approved IMA
Locality:Khaidarkan Hg deposit, about 60 km south of Fergana, Kirgizia.
Name Origin:For A. C. Velikyi (1913-1970), a well known investigator of the ore deposits of Central Asia.
Physical Properties:
Cleavage:None
Color:gray, greenish gray, or light gray.
Density:5.45
Diaphaniety:Opaque
Habits:Granular - Generally occurs as anhedral to subhedral crystals in matrix., ,
Hardness:4 - Fluorite
Luster:Metallic
Streak:gray
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