Uranpyrochlor

German name.

Structural context

Uranpyrochlore (of Hogarth 1977)
Crystal System isometricCrystal Class hexoctahedralSpace Group Fd-3m

Chemical context

Stoichiometric formulas

Uranpyrochlor
mindat.org
  • March 13, 2023(U,Ca,Ce)2(Nb,Ta)2O6(OH,F)
Uranpyrochlore (of Hogarth 1977)
mindat.org
  • March 13, 2023(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)usually is enriched by Ti, but in lesser quantities then betafites
mineralogy.rocks
  • Aug. 30, 2022(Ca,U,Ce3+)2(Nb5+,Ti4+,Ta)2O6(OH,F)

Physical properties

ColorColor entities, recognized using a custom trained NER model
    • red-brown
    • chocolate-brown
      • amber-yellow
      Color noteOriginal color note from the source
      Red, red-brown, chocolate-brown to black, amber-yellow
      Lustre
      Adamantine
      Resinous
      Hardness
      4—5