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Alexandrite

ALEXANDRITE - Atlantis Institute Crystals Encyclopedia

Origin 

Alexandrite is an extremely rare gemstone initially discovered in the Sanarka River in Russia's southern Ural Mountains. The chemical composition exhibits Chrysoberyl's variants consisting of a chrysoberyl cat's eye and transparent Chrysoberyl, yet has chromium as an impurity along with iron and titanium, which accounts for its distinctive ability to change colour. The only type o