Mineralogy Database

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236 samples matching your criteria

  • Sample n°16026 : crystal fragments
    Minerals: CASSITERITE COLUMBITE TANTALITE
    Year:
    Country: Congo (RDC)
  • Sample n°1786 : several small black flattened crystals
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Congo (RDC)
  • Sample n°1957 : black rounded crystals (1 cm)
    Minerals: COLUMBITE
    Year:
    Country: Rwanda
  • Sample n°1958 : black square tablets (1 cm)
    Minerals: COLUMBITE
    Year:
    Country: Congo (RDC)
  • Sample n°1959 : black plates (2 cm)
    Minerals: COLUMBITE
    Year:
    Country: Rwanda
  • Sample n°1980 : fine concentrate
    Minerals: COLUMBITE ILMENITE TANTALITE WOLFRAMITE
    Year:
    Country: Congo (RDC)
  • Sample n°1984 : fine concentrate
    Minerals: COLUMBITE TANTALITE WOLFRAMITE
    Year:
    Country: Congo (RDC)
  • Sample n°2016 : plates (1-4 cm) as chevron aggregates
    Minerals: COLUMBITE
    Year:
    Country: Congo (RDC)
  • Sample n°2049 : altered crystals
    Minerals: COLUMBITE
    Year:
    Country: Congo (RDC)
  • Sample n°2143 : black tabular crystals
    Minerals: COLUMBITE QUARTZ
    Year: 1941
    Country: Congo (RDC)
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