Mineralogy Database

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85 samples matching your criteria

  • Sample n°10314 : black crystals in quartzite (12 cm), graphic texture
    Minerals: TOURMALINE MUSCOVITE
    Year:
    Country: Rwanda
  • Sample n°10324 : debris (2-6 cm)
    Minerals: CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°10325 : crystallised block (12 cm)
    Minerals: CALCITE
    Year:
    Country: Rwanda
  • Sample n°10487 : white stony debris (4 cm)
    Minerals: BERYL
    Year:
    Country: Rwanda
  • Sample n°10611 : brown crystals (1 cm) and aggregates
    Minerals: CASSITERITE
    Year: 1964
    Country: Rwanda
  • Sample n°10613 : massive sulfides (10 cm)
    Minerals: PYRITE
    Year: 1964
    Country: Rwanda
  • Sample n°10619 : layers of juxtaposed pyramidal crystals (2 cm)
    Minerals: AMETHYST (quartz)
    Year: 1964
    Country: Rwanda
  • Sample n°10620 : plate of purplish black pyramidal crystals (15 cm)
    Minerals: QUARTZ
    Year: 1964
    Country: Rwanda
  • Sample n°10621 : white blocks
    Minerals: AMBLYGONITE
    Year: 1964
    Country: Rwanda
  • Sample n°10622 : plates (15 cm)
    Minerals: CASSITERITE
    Year: 1964
    Country: Rwanda
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