VS
Name
—
HgSe
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Cubic
Crystal system
—
2.5
Mohs hardness
—
8.19–8.47
Specific gravity
—
Nearly black
Streak
—
Metallic. R: (400) 34.5, (420) 35.2, (440) 35.0, (460) 34.0, (480) 32.7, (500) 31.6, (520) 30.6, (540) 29.9
Luster
—
—
Cleavage
—
F-43m
Space group
—
Sphalerite
Structural group
—
Tmn · Grandfathered
IMA
—
1855
Named in
—
Steel-gray to brownish lead-gray; in polished section, pale gray
Typical colors
—
Hg · Se
Elements
—