Mineralogy Database

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42 samples matching your criteria

  • Sample n°1247 : red prismatic crystals (3 cm)
    Minerals: QUARTZ
    Year: 1946
    Country: Congo (RDC)
  • Sample n°4591 : crust of red prismatic crystals (1-5 cm)
    Minerals: QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°10061 : massive amethyst on dolerite
    Minerals: AMETHYST (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10062 : geode of clear prismatic crystals on massive chalcedony
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10063 : group of clear and red prismatic crystals
    Minerals: QUARTZ
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10064 : red prismatic crystals (1-3 cm)
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10065 : large plate of red prismatic crystals (1-2 cm)
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10069 : geode of quartz crystals (5 mm), pistachio-green elongated epidote crystal
    Minerals: QUARTZ CHALCEDONY (quartz) EPIDOTE
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10070 : red and purple veined block
    Minerals: CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10071 : geode of small black crystals
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
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