Uricite

Uric acid (or urate) is an organic compound of carbon, nitrogen, oxygen and hydrogen with the formula C5H4N4O3.
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General Information:
 Chemical Formula:
C5H4N4O3
 Composition:
(Molecular Weight = 168.11 gm)
Hydrogen 2.40 % H 
Carbon 35.72 % C 
Nitrogen 33.33 % N 
Oxygen 28.55 % O 
 Empirical Formula:
C5H4N4O3
 IMA Status:
Approved IMA 1974
Physical Properties:
 Color:
colorless or yellowish white.
 Density:
1.85
 Diaphaniety:
Transparent
 Hardness:
1-2 - Between Talc and Gypsum
 Streak:
white
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