Mineral Information and Data:

Buttgenbachite
Cu36(NO3)2Cl6(OH)64 • nH2O [CNMNC approved formula]

Named for Henri J. Buttgenback (1874-1964), Belgian mineralogist.

IMA status : Valid species (Pre-IMA 1925) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
19.01.02.01  
  (19) Nitrates - Hydroxyl or Halogen
  (19.01) with miscellaneous formulae
  (19.01.02)
  
Nickel-Strunz
(10th edition) :
03.DA.25
  (03) Halides
  (03.D) Oxyhalides, Hydroxyhalides and Related Double Halides
  (03.DA) With Cu, etc., without Pb
  
Crystal system: Hexagonal System
Point group (H-M): 6/mmm (or 6/m 2/m 2/m) — dihexagonal-dipyramidal
  
  
  

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