Mineral Information and Data:

Phosphosiderite
Fe3+PO4 • 2H2O [CNMNC approved formula]

Named after its chemical composition, PHOSPHrous and SIDERos, Iron.

IMA status : Approved Species 1890 ()
CLASSIFICATION 
Dana
(8th edition) :
40.04.03.02  
  (40) Hydrated Phosphates
  (40.04) where A+++ XO4 · x(H2O)
  (40.04.03) Metavariscite group
  
Nickel-Strunz
(10th edition) :
08.CD.05
  (08) Phosphates, Arsenates, Vanadates
  (08.C) Phosphates without Additional Anions, with H2O
  (08.CD) With only medium-sized cations, RO4:H2O = 1:2
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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