General Information:
Chemical Formula:
Cu6Hg3As4S12
Composition:
(Molecular Weight = 1,667.52 gm)
Copper 22.86 % Cu
Mercury 36.09 % Hg
Arsenic 17.97 % As
Sulfur 23.08 % S
Empirical Formula:
Cu6Hg3As4S12
IMA Status:
Approved IMA
Locality:
TL: Gal-Kyaya deposit, Yakutia, and Aktash deposit, Altai Mts., Russia.
Name Origin:
Named after the locality.
Physical Properties:
Cleavage:
None
Color:
grayish black.
Density:
5.5
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., Anhedral Grains - Granular minerals without the expression of crystal shapes, Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Hardness:
3.5 - Copper Penny
Luster:
Metallic
Streak:
black
More details...