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Pure Blue Tanzanite?

Discussion in 'Colored Gemstones' started by andie6, Feb 11, 2019.

  1. andie6
    Rough_Rock

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    by andie6 » Feb 11, 2019
    Hi guys...

    New here... but hoping for a simple answer to a lingering question. I'm a huge fan of tanzanite stones... and I've collected a lot of jewelry pieces. Some violet blue, some blue violet, some totally purple... and one, very much blue. But is this possible? Perhaps I'm missing some sort of glimmer of violet/purple somewhere in the stone? Has anyone ever seen or heard of completely blue tanzanite with no violet/purple visible?

    Thanks for your help :)
     
    


    


  2. Austina
    Ideal_Rock

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    by Austina » Feb 11, 2019
    I’m no expert, but my understanding is that it’s a trichroic gemstone, so you should be seeing 3 colours.

    Do you have a photo?
     
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  3. voce
    Brilliant_Rock

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    by voce » Feb 11, 2019
    Must be affected by the direction it's cut.
     
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  4. lovedogs
    Ideal_Rock

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    by lovedogs » Feb 11, 2019
    Found this color chart which I thought was interesting. 105-DISCOVER-ABOUT-TANZANITE-Grading-Colour-3.png
     
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  5. AV_
    Brilliant_Rock

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    by AV_ » Feb 13, 2019
    New Era Gems often offers Tanzanite in uncommon colors, including versions of blue.
    I would guess that most blues are the other axis color of the famous purple-blue-violet variety, but there certainly are other possibilities.
     
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  6. tigertales
    Shiny_Rock

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    by tigertales » Feb 13, 2019
    Aren't most Tanzanites a yellow beige before they're heat treated? So, variations are bound to happen, as with any colored stones.
     

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