Mineralogy Database

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1097 samples matching your criteria

  • Sample n°2985 : purplish prismatic crystals (5 cm) and crust of white prismatic crystals (2 cm)
    Minerals: QUARTZ AMETHYST (quartz)
    Year: 1949
    Country: Congo (RDC)
  • Sample n°2986 : stacked prismatic quartz crystals in geode, disseminated pyrite
    Minerals: QUARTZ PYRITE
    Year: 1949
    Country: Congo (RDC)
  • Sample n°2995 : prismatic crystals (1-6 cm)
    Minerals: QUARTZ
    Year: 1949
    Country: Congo (RDC)
  • Sample n°3017.1 : clear prismatic crystals (5 cm)
    Minerals: QUARTZ
    Year: 1949
    Country: Congo (RDC)
  • Sample n°3017.2 : group of clear prismatic crystals
    Minerals: QUARTZ
    Year: 1949
    Country: Congo (RDC)
  • Sample n°3021 : bright crystals in geode
    Minerals: QUARTZ
    Year: 1937
    Country: Congo (RDC)
  • Sample n°3022 : geode (7 cm)
    Minerals: QUARTZ
    Year: 1937
    Country: Angola
  • Sample n°3031 : various debris, including amethyst
    Minerals: AMETHYST (quartz) QUARTZ
    Year: 1939
    Country: Congo (RDC)
  • Sample n°3037 : well-developed aggregate of clear prismatic crystals (15 cm)
    Minerals: QUARTZ
    Year: 1950
    Country: Congo (RDC)
  • Sample n°3051 : crystals in vein
    Minerals: GALENA PYRITE QUARTZ
    Year: 1951
    Country: Congo (RDC)
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