Mineral Information and Data:

Phurcalite  
Ca2(UO2)3O2(PO4)2 • 7H2O [CNMNC approved formula]

Named for PHosphorus, URanium, and CALcium in the composition.

IMA status : Approved Species 1978 ()
CLASSIFICATION 
Dana
(8th edition) :
42.04.07.01  
  (42) Hydrated Phosphates Containing Hydroxyl or Halogen
  (42.04) where (AB)5 (XO4)2 Zq · x(H2O)
  (42.04.07)
  
Nickel-Strunz
(10th edition) :
08.EC.35
  (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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