Mineral Information and Data:

Guanine
C5H3(NH2)N4O [CNMNC approved formula]

Named Namd for its derivation from and association with guano.

IMA status : Approved Species 1844 ()
CLASSIFICATION 
Dana
(8th edition) :
50.04.05.01  
  (50) Salts of Organic Acids and Hydrocarbons
  (50.04) with miscellaneous formulae
  (50.04.05)
  
Nickel-Strunz
(10th edition) :
10.CA.30
  (10) Organic Compounds
  (10.C) Miscellaneous Organic Minerals
  (10.CA) Miscellaneous Organic Minerals
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  
Other Properties: BioMineral.

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