Mineral Information and Data:

Francevillite  
Ba(UO2)2(VO4)2 • 5H2O [CNMNC approved formula]

Named for the locality: Mounana mine, Franceville, Haut-Ogooue, Gabon.

IMA status : Valid species (Pre-IMA 1975) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
40.02a.27.01  
  (40) Hydrated Phosphates
  (40.02a) where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++
  (40.02a.27)
  
Nickel-Strunz
(10th edition) :
04.HB.15
  (04) Oxides and Hydroxides
  (04.H) V[5+,6+] Vanadates
  (04.HB) Uranyl Sorovanadates
  
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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