Mineral Information and Data:

Kastningite
Mn2+Al2(PO4)2(OH)2 • 8H2O [CNMNC approved formula]

Named after J├╝rgen Kastning (b. 1932), from Reinbeck bei Hamburg, Germany, amateur mineralogist specializing in phosphate minerals, who discovered the mineral.

IMA status : Approved Species 1999 ()
CLASSIFICATION 
Dana
(8th edition) :
42.11.14.06  (This Dana# Added)
  (42) Hydrated Phosphates Containing Hydroxyl or Halogen
  (42.11) where (AB)4 (XO4)3 Zq · x(H2O)
  (42.11.14) Vauxite Group
  
Nickel-Strunz
(10th edition) :
08.DC.30
  (08) Phosphates, Arsenates, Vanadates
  (08.D) Phosphates, etc
  (08.DC) With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
  
  
  

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