General Information:
Chemical Formula:
HgSe
Composition:
(Molecular Weight = 279.55 gm)
Mercury 71.75 % Hg
Selenium 28.25 % Se
Empirical Formula:
HgSe
Locality:
Marysville, Piute Co., Utah.
Name Origin:
Named after its discoverer, C. W. F. Tiemann (1848-1899).
Physical Properties:
Cleavage:
None
Color:
gray, reddish brown, or black.
Density:
8.19 - 8.47, Average = 8.33
Diaphaniety:
Opaque
Habits:
Euhedral Crystals - Occurs as well-formed crystals showing good external form., Granular - Generally occurs as anhedral to subhedral crystals in matrix.,
Hardness:
2.5 - Finger Nail
Luminescence:
None.
Luster:
Metallic
Streak:
grayish black
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