Mineral Information and Data:

Phosphofibrite
(H2O,K)3.5Fe3+8(PO4)6(OH)7 • 5H2O [CNMNC approved formula]

Named for phosphorus in the composition and its characteristic fibrous habit.

IMA status : Approved Species 1984 ()
CLASSIFICATION 
Dana
(8th edition) :
42.13.10.01  
  (42) Hydrated Phosphates Containing Hydroxyl or Halogen
  (42.13)
  (42.13.10)
  
Nickel-Strunz
(10th edition) :
08.DJ.20
  (08) Phosphates, Arsenates, Vanadates
  (08.D) Phosphates, etc
  (08.DJ) With large and medium-sized cations, (OH, etc.):RO4 = 1:1
  
Crystal system: Orthorhombic System
Point group (H-M): mmm (or 2/m 2/m 2/m) — dipyramidal
  
  
  

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