Edgarbaileyite

General Information:
 Chemical Formula:
Hg+6Si2O7
 Composition:
(Molecular Weight = 1,371.71 gm)
Silicon 4.09 % Si
Mercury 87.74 % Hg
Oxygen 8.16 % O 
 Empirical Formula:
Hg6Si2O7
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
None
 Color:
yellow, orangish yellow, dark olive green, yellowish green, or dark green brown.
 Density:
9.4
 Diaphaniety:
Translucent to Opaque
 Hardness:
4 - Fluorite
 Luster:
Vitreous - Resinous
 Streak:
yellow green
More details...