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​Ever wonder how Alexandrite differs from Chrysoberyl and what causes the color change?

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Alexandrite contains iron, titanium, chromium and sometimes Vanadium trace elements that differentiate it chemically from Chrysoberyl. The color change phenomena are a result of the presence of chromium +3 ions and the way they are absorbed and reflected. In rubies, the chromium absorption band is around 550 nanometers and in emeralds, the band is around 600nm. Alexandrite, where the band is at 580nm and right between ruby red and green emerald, the stone is balanced between them. When the light is balanced (daylight), the stone will be green but when the light source is reddish (incandescent), the stone appears red. The Brazilian material goes from a Reddish Purple to Green!   

Check out our Alexandrite Fine Jewelry pieces and watch this space for some new Alexandrite pieces that we'll be introducing later this month!

 



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