Deanesmithite

General Information:
 Chemical Formula:
Hg+2Hg++3Cr++++++O5S2
 Composition:
(Molecular Weight = 1,199.08 gm)
Chromium 4.34 % Cr
Mercury 83.64 % Hg
Sulfur 5.35 % S 
Oxygen 6.67 % O 
 Empirical Formula:
Hg2Hg3CrO5S2
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[???] Good
 Color:
orange red.
 Diaphaniety:
Transparent
 Hardness:
4.5-5
 Luster:
Adamantine
 Streak:
orange red
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