Mineralogy Database

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1547 samples matching your criteria

  • Sample n°9061 : beige crystals on saccharoidal quartz
    Minerals: CASSITERITE QUARTZ
    Year: 1962
    Country: Rwanda
  • Sample n°9062 : purple cassiterite in quartz
    Minerals: CASSITERITE
    Year: 1962
    Country: Rwanda
  • Sample n°9064 : mixed broken crystals (1-5 cm)
    Minerals: CASSITERITE COLUMBITE TANTALITE
    Year: 1962
    Country: Rwanda
  • Sample n°9065 : large black crystal
    Minerals: COLUMBITE
    Year: 1962
    Country: Rwanda
  • Sample n°9066 : isolated black crystals (1 cm) and aggregates in vein quartz
    Minerals: COLUMBITE TANTALITE
    Year: 1962
    Country: Rwanda
  • Sample n°9067 : altered pyrite cubes (1 cm)
    Minerals: SCHORL
    Year: 1962
    Country: Rwanda
  • Sample n°9077 : grey fragments (7 cm)
    Minerals: BISMUTITE
    Year: 1962
    Country: Rwanda
  • Sample n°9081 : bright black block (8 cm)
    Minerals: GRAPHITE QUARTZ
    Year: 1962
    Country: Rwanda
  • Sample n°9082 : isolated black prismatic crystals (2 cm)
    Minerals: RUTILE
    Year: 1962
    Country: Rwanda
  • Sample n°9083 : tourmaline needles and tabular wolframite crystals in geodic quartz
    Minerals: WOLFRAMITE TOURMALINE
    Year: 1962
    Country: Rwanda
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