General Information:
Chemical Formula:
Ca3Cr2(SiO4)3
Composition:
(Molecular Weight = 500.48 gm)
Calcium 24.02 % Ca
Chromium 20.78 % Cr
Silicon 16.84 % Si
Oxygen 38.36 % O
Empirical Formula:
Ca3Cr2(SiO4)3
Environment:
Metamorphosed chromite deposits.
IMA Status:
Approved IMA 1963
Locality:
Central Urals, Russia.
Name Origin:
Named after Count S. S. Uvarov (1765-1855), Russian statesman and ardent amateur mineral collector.
Physical Properties:
Cleavage:
None
Color:
green.
Density:
3.4 - 3.8, Average = 3.59
Diaphaniety:
Transparent to translucent
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Crystalline - Fine - Occurs as well-formed fine sized crystals., Lamellar - Thin laminae producing a lamellar structur e.
Hardness:
6.5-7 - Pyrite-Quartz
Luminescence:
None.
Luster:
Vitreous (Glassy)
Streak:
white
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