Mineral Information and Data:

Medenbachite
Bi2Fe3+Cu2+O(AsO4)2(OH)3 [CNMNC approved formula]

Named for Dr. Olaf Medenbach (1949-) of the University of Bochum, Germany.

IMA status : Approved Species 1993 ()
CLASSIFICATION 
Dana
(8th edition) :
41.04.09.01  (This Dana# Added)
  (41) Anhydrous Phosphates Containing Hydroxyl or Halogen
  (41.04) where (A B)5 (XO4)2 Zq
  (41.04.09) Medenbachite Group
  
Nickel-Strunz
(10th edition) :
08.BK.10
  (08) Phosphates, Arsenates, Vanadates
  (08.B) Phosphates, etc. with Additional Anions, without H2O
  (08.BK) With medium-sized and large cations, (OH, etc.):RO4 = 2:1, 2.5:1
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
  
  
  

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