Mineralogy Database

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953 samples matching your criteria

  • Sample n°9651 : altered black prismatic crystals in saccharoidal quartz (12 cm)
    Minerals: SCHORL QUARTZ
    Year: 1962
    Country: Rwanda
  • Sample n°9659 : black lamellae on white feldspar (18 cm)
    Minerals: BIOTITE MICROCLINE
    Year:
    Country: Rwanda
  • Sample n°9694 : sample composed of concentratre of yellow-red microlite with greasy lustre, dark brown columbite
    Minerals: MICROLITE COLUMBITE
    Year: 1962
    Country: Rwanda
  • Sample n°9695 : sample with green autunite in geode, smoky quartz
    Minerals: AUTUNITE QUARTZ
    Year: 1962
    Country: Rwanda
  • Sample n°9703 : black tabular crystals
    Minerals: WODGINITE
    Year: 1962
    Country: Rwanda
  • Sample n°9704 : bluish block (7 cm)
    Minerals: MONTEBRASITE SCORZALITE
    Year:
    Country: Rwanda
  • Sample n°9705 : block of mixed phosphates
    Minerals: BRAZILIANITE AMBLYGONITE LAZULITE
    Year:
    Country: Rwanda
  • Sample n°9706 : blue spotted block (6 cm)
    Minerals: SCORZALITE
    Year:
    Country: Rwanda
  • Sample n°9707 : mixed blocks (7 cm)
    Minerals: ARROJADITE BURANGAITE WYLLIEITE APATITE BRAZILIANITE PHOSPHOSIDERITE SCORZALITE
    Year:
    Country: Rwanda
  • Sample n°9708 : blocks of bronze-coloured tabular crystals
    Minerals: ALLUAUDITE
    Year:
    Country: Rwanda
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