Mineral Information and Data:

Haggite
V2O2(OH)3 [CNMNC approved formula]

Named for Gunnar Hagg (1903-), chemist and crystallographer, of the University of Uppsala, Sweden.

IMA status : Valid species (Pre-IMA 1958) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
06.04.03.01  
  (06) Hydroxides and Oxides Containing Hydroxyl
  (06.04) containing multiple cations
  (06.04.03)
  
Nickel-Strunz
(10th edition) :
04.HE.25
  (04) Oxides and Hydroxides
  (04.H) V[5+,6+] Vanadates
  (04.HE) Phyllovanadates
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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