Alexandrite Gem!

Discussion in 'Earth Science' started by Diode-Man, Jun 15, 2008.

  1. Diode-Man Awesome User Title Registered Senior Member

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    Hey, I was surfing around on Google image search and found an incredible gem:

    Alexandrite: Appears blue green in sunlight and purple under incandescent light!

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    How does this happen? I'm sure it has something to do with the way it was formed and what elements make it up, anyone know any details on that?
     
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  3. cosmictraveler Be kind to yourself always. Valued Senior Member

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    Different wavelengths of different light will make that happen.
     
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  5. Diode-Man Awesome User Title Registered Senior Member

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    How can I get my sciforums name changed to "Diode-Man"?
     
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