Mineralogy Database

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230 samples matching your criteria

  • Sample n°4445 : black crystal (5 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Burundi
  • Sample n°4446 : black plates (6 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Rwanda
  • Sample n°4447 : black plates (6 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Burundi
  • Sample n°4448 : dull black crystals (1-4 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Rwanda
  • Sample n°4748 : very fine concentrate
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4767 : concentrate (1 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4768 : concentrate (8 mm), radioactive
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4769 : tabular crystals (1-2 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4770 : tabular crystals (1-2 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4797 : black concentrate (2 mm)
    Minerals: COLUMBITE
    Year: 1955
    Country: Rwanda
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