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Alexandrite is the highly regarded color changing variety of Chrysoberyl. The color of Alexandrite changes under different lighting conditions. If viewed in daylight, its color is greenish blue to dark yellow-green. If viewed in incandescent or candle light, its color is pink to red. Its chemical formula is BeAl2O4, it has a hardness of 8.5 on the Mohs scale and a refractive index of 1.744 - 1.755. Source: http://www.minerals.net/gemstone/alexandrite_gemstone.aspx

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The Hindi name for alexandrite is अलेक्सांड्राइट (aleksaandrāit).


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One of the places that alexandrite is mined is in Sri Lanka.


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