A fascinating phenomenon in the world of precious gemstones is the way alexandrite changes color under various light sources. The "Whitney Alexandrite," which is on display at the National Museum of Natural History in Washington, D.C., is one of the world's largest and finest examples of the color-change mineral from the chrysoberyl family. Alexandrite is also one of the three official birthstones for the month of June. Learn much more at ... http://futerbrosjewelers.thejewelerblog.com/
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