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Amethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiation, iron impurities (in some cases in conjunction with transition element impurities), and the presence of trace elements, which result in complex crystal lattice substitutions.
WHAT IS AMETHYST MEANING. Amethyst is a type of quartz stones. Its characterized by a violet color, which can vary from dark purple to pink. Russian writer Alexander Kuprin noted that the amethyst color resembles violets blossoming in the woods at the foot of the Libyan mountains.methyst is a type of quartz stones. Its characterized by a violet color, which can vary from dark purple to pink. Russian writer Alexander Kuprin noted that the amethyst color resembles violets blossoming in the woods at the foot of the Libyan mountains.