Mineral Information and Data:

Dewindtite  
H2Pb3(UO2)6O4(PO4)4 • 12H2O [CNMNC approved formula]

Named for Jean Dewindt, Belgian geologist.

IMA status : Valid species (Pre-IMA 1922) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
42.09.08.01  
  (42) Hydrated Phosphates Containing Hydroxyl or Halogen
  (42.09) where (A)3 (XO4)2 Zq · x(H2O)
  (42.09.08)
  
Nickel-Strunz
(10th edition) :
08.EC.10
  (08) Phosphates, Arsenates, Vanadates
  (08.E) Uranyl Phosphates and Arsenates
  (08.EC) UO2:RO4 = 3:2
  
Crystal system: Orthorhombic System
Point group (H-M): mmm (or 2/m 2/m 2/m) — dipyramidal
  
  
  
Other Properties: Radioactive.
Comments: Radioactive.

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