General Information:
Chemical Formula:
HgS
Composition:
(Molecular Weight = 232.66 gm)
Mercury 86.22 % Hg
Sulfur 13.78 % S
Empirical Formula:
HgS
IMA Status:
Approved IMA
Name Origin:
Of uncertain original meaning, from the Latin, cinnabaris.
Physical Properties:
Cleavage:
[1010] Perfect
Color:
lead gray, brown, brown pink, vermilion, or gray.
Density:
8.1
Diaphaniety:
Transparent to translucent to opaque
Habits:
Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces., Disseminated - Occurs in small, distinct particles dispersed in matrix., Massive - Uniformly ind istinguishable crystals forming large ma
Hardness:
2-2.5 - Gypsum-Finger Nail
Luminescence:
None.
Luster:
Adamantine
Streak:
bright red
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