Wattersite

General Information:
 Chemical Formula:
Hg+4Hg++Cr++++++O6
 Composition:
(Molecular Weight = 549.17 gm)
Chromium 9.47 % Cr
Mercury 73.05 % Hg
Oxygen 17.48 % O 
 Empirical Formula:
HgHgCrO6
 Environment:
Oxidized zone of mercury deposits.
 IMA Status:
Approved IMA
 Locality:
Clear Creek mercury mine, new Idria district, San Benito County, California.
 Name Origin:
The mineral is named for Mr. Lu Watters(1911-1989), a well known California mineral collector, jazz trumpeter, chef and environmentalist.
Physical Properties:
 Cleavage:
None
 Color:
bronze, reddish brown, or black.
 Density:
8.91
 Diaphaniety:
Opaque to translucent
 Habits:
Encrustations - Forms crust-like aggregates on matrix., Crystalline - Fine - Occurs as well-formed fine sized crystals.,
 Hardness:
4.5 - Between Fluorite and Apatite
 Luminescence:
Non-fluorescent.
 Luster:
Sub Metallic
 Streak:
dark brick red
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