Mineralogy Database

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1544 samples matching your criteria

  • Sample n°389 : black prismatic crystals (2 cm) in quartz debris
    Minerals: TOURMALINE
    Year:
    Country: Rwanda
  • Sample n°618 : amygdale (1 cm) in andesite
    Minerals: ARAGONITE
    Year: 1924
    Country: Rwanda
  • Sample n°825 : dull yellow prismatic crystals (1 cm)
    Minerals: TOPAZ
    Year: 1933
    Country: Rwanda
  • Sample n°854 : broken black crystals in pegmatite (15 cm)
    Minerals: CASSITERITE
    Year: 1934
    Country: Rwanda
  • Sample n°855 : black crystals in greisen (8 cm)
    Minerals: CASSITERITE
    Year: 1934
    Country: Rwanda
  • Sample n°857 : blue speckles and white plates in pegmatite
    Minerals: SCORZALITE APATITE
    Year: 1930
    Country: Rwanda
  • Sample n°858 : clear prismatic crystals (1-2 cm)
    Minerals: QUARTZ
    Year: 1934
    Country: Rwanda
  • Sample n°860 : plate (8 cm)
    Minerals: MUSCOVITE
    Year: 1934
    Country: Rwanda
  • Sample n°861 : red, earth-like
    Minerals: HEMATITE
    Year: 1934
    Country: Rwanda
  • Sample n°862 : metallic block (5 cm)
    Minerals: ILMENITE
    Year: 1934
    Country: Rwanda
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