Puneet Varma (Editor)

Lepersonnite (Gd)

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Category
  
Carbonate mineral

Crystal system
  
Orthorhombic

Dana classification
  
17.1.12.1

Lepersonnite-(Gd)

Formula (repeating unit)
  
Ca(Gd,Dy)2(UO2)24(SiO4)4(CO3)8(OH)24•48H2O

Strunz classification
  
5.EG.10 (10 ed) 8/B.38-10 (8 ed)

Crystal class
  
Pyramidal (mm2) and dipyramidal (mmm)

Lepersonnite-(Gd) is a very rare rare earth and uranium mineral with the formula Ca(Gd,Dy)2(UO2)24(SiO4)4(CO3)8(OH)24•48H2O. It associates with bijvoetite-(Y) in Shinkolobwe deposit in Republic of Congo, famous for rare uranium minerals. Lepersonnite-(Gd) is unique in being the only confirmed mineral with essential gadolinium.

References

Lepersonnite-(Gd) Wikipedia
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