Mineralogy Database

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144 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°1807 : brown cassiterite concentrate (5 mm), black tantalite plates (2 cm), with polished section
    Minerals: CASSITERITE TANTALITE
    Year:
    Country: Congo (RDC)
  • Sample n°1960 : black rounded crystals (2 cm)
    Minerals: TANTALITE
    Year:
    Country: Congo (RDC)
  • 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°2004 : black crystals in large block of greisen
    Minerals: TANTALITE
    Year:
    Country: Rwanda
  • Sample n°2006 : black plates (4 cm) in block of greisen (12 cm)
    Minerals: TANTALITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°2007 : black tabular crystals (2 cm) in micaceous quartz
    Minerals: TANTALITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°2487 : black plates (2 cm) and needles in altered greisen (16 cm)
    Minerals: TANTALITE
    Year:
    Country: Rwanda
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