Mineralogy Database

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555 samples matching your criteria

  • Sample n°15869 : massive black uraninite, some yellow and orange oxidation products
    Minerals: URANINITE
    Year:
    Country: Congo (RDC)
  • Sample n°1149 : sample composed of uraninite, with small amount of associated secondary minerals
    Minerals: URANINITE
    Year: 1946
    Country: Congo (RDC)
  • Sample n°2758 : yellow coating on light greyish band, on brown altered substrate
    Minerals: unidentified
    Year: 1950
    Country: Congo (RDC)
  • Sample n°15923 : well-developed plate-shaped metatorbernite crystals and fine-grained heterogenite, as discontinuous coatings and occurrences within the substrate
    Minerals: HETEROGENITE METATORBERNITE
    Year: 2009
    Country: Congo (RDC)
  • Sample n°16096 : crystals on substrate
    Minerals: BIJVOETITE-(Y)
    Year:
    Country: Congo (RDC)
  • Sample n°16097 : sample with rosettes of plate-shaped cousinite crystals
    Minerals: COUSINITE
    Year: 2009
    Country: Congo (RDC)
  • Sample n°16233 : bright yellow fine-grained mass
    Minerals: DUMONTITE
    Year: 2009
    Country: Congo (RDC)
  • Sample n°16322 : thick irregular coating
    Minerals: MALACHITE
    Year: 2010
    Country: Congo (RDC)
  • Sample n°16866 : coarse-crystalline bluish calcite (scandium-bearing)
    Minerals: CALCITE
    Year: 2012
    Country: Congo (RDC)
  • Sample n°16874 : elongated dark grey crystals in rock matrix
    Minerals: MAGNESITE
    Year: 2012
    Country: Congo (RDC)
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