How to test Alex Stone Real or Fake
The color of an Alexandrite stone changes depending on the light it's exposed to:
Daylight or fluorescent light: The stone appears green
Ultraviolet light: The stone glows red
Incandescent light, like from a candle or lamp: The stone appears purple-red
White light: The stone appears purple-grey
The color change is due to the presence of chromium in the stone. Different wavelengths of light are absorbed in different lighting conditions, which causes the stone to appear different colors.
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