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4 samples matching your criteria

  • Sample n°6629 : sample with uraninite (partly yellow), bottle-green gahnite, black ixiolite plates, fragmented columbo-tantalite crystals
    Minerals: GAHNITE IXIOLITE URANINITE COLUMBITE TANTALITE
    Year: 1955
    Country: Brazil
  • Sample n°6762 : brown pyramidal single crystal (6 cm)
    Minerals: GAHNITE
    Year: 1954
    Country: Canada
  • Sample n°12528 : black pyramidal crystal (3 cm)
    Minerals: GAHNITE
    Year: 1970
    Country: Zimbabwe
  • Sample n°13488 : sample with uraninite (partly orange), gahnite as black material with greenish lustre and as white powder in centre of uraninite, massive yellow uranophane
    Minerals: GAHNITE URANINITE QUARTZ URANOPHANE
    Year: 1977
    Country: USA
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