Mineralogy Database

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64 samples matching your criteria

  • Sample n°11215 : purple crust with chevron texture (10 cm)
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°11296 : purplish flattened prismatic crystal
    Minerals: AMETHYST (quartz)
    Year: 1967
    Country: Madagascar
  • Sample n°11587 : cluster of prismatic crystals (cm)
    Minerals: AMETHYST (quartz)
    Year: 1954
    Country: Slovakia
  • Sample n°11705 : fragments (10 cm) of zoned purple and white crust
    Minerals: AMETHYST (quartz)
    Year: 1967
    Country: Rwanda
  • Sample n°13298 : geode of purple crystals
    Minerals: AMETHYST (quartz)
    Year: 1975
    Country: Madagascar
  • Sample n°13894 : geode (10 cm), with some small black goethite crystals
    Minerals: GOETHITE AMETHYST (quartz)
    Year: 1981
    Country: Madagascar
  • Sample n°13965 : purple prismatic crystal (5 cm)
    Minerals: AMETHYST (quartz)
    Year: 1982
    Country: Zambia
  • Sample n°14006 : broken purple crystals (2 cm)
    Minerals: AMETHYST (quartz)
    Year: 1983
    Country: India
  • Sample n°14201 : clear purple fragment (5 cm), purple cut stone (cabochon cut) (1.32 g)
    Minerals: AMETHYST (quartz)
    Year: 1983
    Country: India
  • Sample n°14202 : one rough block (4 cm), one square cut stone (0.81 g)
    Minerals: AMETHYST (quartz)
    Year: 1983
    Country: India
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