Mineralogy Database

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64 samples matching your criteria

  • Sample n°15922 : large well-developed crystals, with thin colourless overgrowth
    Minerals: AMETHYST (quartz)
    Year: 2009
    Country: Congo (RDC)
  • Sample n°16221 : coatings of small crystals
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°15985 : zoned crystal, grading from quartz to amethyst
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°16033 : aggregates with deep purple colour
    Minerals: AMETHYST (quartz)
    Year: 1967
    Country: Rwanda
  • Sample n°17297 : fragments with deep purple colour
    Minerals: AMETHYST (quartz)
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17377 : crystals
    Minerals: AMETHYST (quartz)
    Year: 2016
    Country: Zambia
  • Sample n°17378 : fragments
    Minerals: AMETHYST (quartz)
    Year: 2016
    Country: Zambia
  • Sample n°18342 : fragment of thick crust
    Minerals: AMETHYST (quartz)
    Year: 2017
    Country: Burundi
  • Sample n°14773 : crystal
    Minerals: AMETHYST (quartz)
    Year: 1996
    Country: Zimbabwe
  • Sample n°14774 : cut stone (oval cut)
    Minerals: AMETHYST (quartz)
    Year: 1996
    Country: Zimbabwe
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