Mineral Information and Data:

Wilhelmkleinite
ZnFe3+2(AsO4)2(OH)2 [CNMNC approved formula]

Named after Wilhelm Klein, former mine manager in Anamibia, who made the first systematic collection of minerals from the Tsumeb mine.

IMA status : Approved Species 1999 ()
CLASSIFICATION 
Dana
(8th edition) :
41.05.19.01  (This Dana# Added)
  (41) Anhydrous Phosphates Containing Hydroxyl or Halogen
  (41.05) where (A B)2 (XO4) Zq
  (41.05.19)
  
Nickel-Strunz
(10th edition) :
08.BB.40
  (08) Phosphates, Arsenates, Vanadates
  (08.B) Phosphates, etc. with Additional Anions, without H2O
  (08.BB) With only medium-sized cations, (OH, etc.):RO4 about 1:1
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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