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What is the birthstone for June? It actually has three. A guide to the colorful gems
Alexandrite is a rare variety of mineral that ... In incandescent light, it is red or purple. The gem takes its name from Emperor Alexander II of Russia, the Geological Institute of America ...
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From Rubies, Spinels, and Alexandrites Lead the Top Lots at Sotheby's and Christie's Jewelry Sales
They can move from purple to purple-ish red to a bluish-green. This Brazilian alexandrite is notable for its high transparency and lack of treatment, only accentuating its chameleon effect.