Mineralogy Database

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71 samples matching your criteria

  • Sample n°10377 : group of purple pyramidal crystals (6 cm)
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°10385 : group of purple pyramidal crystals (6 cm)
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°10387 : group of pyramidal prismatic crystals (7 cm), smoky quartz
    Minerals: QUARTZ
    Year: 1970
    Country: Rwanda
  • Sample n°10403 : crust of rounded crystals on block (15 cm)
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°10421 : black prismatic crystals (2-4 cm)
    Minerals: SCHORL
    Year:
    Country: Rwanda
  • Sample n°10687 : blue amphibolite (30 cm)
    Minerals: HOLMQUISTITE
    Year:
    Country: Rwanda
  • Sample n°10688 : blue amphibolite (30 cm)
    Minerals: HOLMQUISTITE
    Year:
    Country: Rwanda
  • Sample n°10689 : earthy white altered blocks (2-8 cm)
    Minerals: MICA
    Year: 1965
    Country: Rwanda
  • Sample n°10690 : powdery pink clay
    Minerals: MONTMORILLONITE
    Year:
    Country: Rwanda
  • Sample n°10692 : black crystals (1-3 cm)
    Minerals: CASSITERITE
    Year: 1965
    Country: Rwanda
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