Mineralogy Database

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1547 samples matching your criteria

  • Sample n°3354 : clear crystal (5 cm)
    Minerals: TOPAZ
    Year: 1953
    Country: Rwanda
  • Sample n°3371 : rust-coloured black block (5 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1953
    Country: Rwanda
  • Sample n°4201 : unsorted black concentrate
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°4204 : pegmatite blocks (15 cm)
    Minerals: MUSCOVITE
    Year: 1954
    Country: Rwanda
  • Sample n°4236 : nugget (7 mm) in rust-coloured quartz
    Minerals: GOLD QUARTZ
    Year: 1954
    Country: Rwanda
  • Sample n°4249 : white fragment (6 cm), with metallic lustre
    Minerals: BISMUTH
    Year: 1954
    Country: Rwanda
  • Sample n°4280 : cubic crystals (5 mm) in white and rust-coloured schist
    Minerals: PYRITE
    Year: 1954
    Country: Rwanda
  • Sample n°4281 : isolated octahedral crystals (1 cm)
    Minerals: PYRITE
    Year: 1954
    Country: Rwanda
  • Sample n°4286 : metallic nodules in vein quartz
    Minerals: ARSENOPYRITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°4303 : debris of royal blue crystals, var. sapphire
    Minerals: CORUNDUM
    Year: 1954
    Country: Rwanda
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