Mineralogy Database

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144 samples matching your criteria

  • Sample n°16674 : large crystals on matrix
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Burundi
  • Sample n°16672 : large plate, and fragments with coltan in matrix
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Burundi
  • Sample n°16676 : fragments
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Burundi
  • Sample n°6548 : columbite-tantalite in pegmatite matrix
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°2005 : crystals in greisen
    Minerals: TANTALITE
    Year:
    Country: Rwanda
  • Sample n°15961 : plate-shaped fragments
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°15938 : fragment
    Minerals: MICROLITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°15979 : concentrate
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°15978 : concentrate
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°16926 : fragments
    Minerals: TANTALITE
    Year:
    Country: Rwanda
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