Eglestonite

General Information:
 Chemical Formula:
Hg6Cl3O(OH) (?)
 Composition:
(Molecular Weight = 1,342.90 gm)
Mercury 89.62 % Hg
Hydrogen 0.08 % H 
Chlorine 7.92 % Cl
Oxygen 2.38 % O 
 Empirical Formula:
Hg6Cl3O(OH)
Physical Properties:
 Cleavage:
None
 Color:
brown, brownish yellow, yellow, dark brown, or orange.
 Density:
8.3
 Diaphaniety:
Transparent to translucent
 Hardness:
2-3 - Gypsum-Calcite
 Luminescence:
Non-fluorescent.
 Luster:
Adamantine - Resinous
 Streak:
light yellow
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