Mineral Information and Data:

Hydrohonessite
(Ni,Fe3+)9(SO4)2(OH)18 • 7H2O [CNMNC approved formula]

Named to indicate its relationship to honessite.

IMA status : Approved Species 1981 ()
CLASSIFICATION 
Dana
(8th edition) :
31.10.07.01  
  (31) Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.10) miscellaneous
  (31.10.07)
  
Nickel-Strunz
(10th edition) :
07.DD.35
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.D) Sulfates (selenates, etc.) with additional anions, with H2O
  (07.DD) With only medium-sized cations; sheets of edge-sharing octahedra
  
Crystal system:  
Point group (H-M):
  
  
  

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