[Jewelry making - Article 00782] - Re: [Orchid] New AGTA blue sapphire treatment report

[richard Wise]

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    Jerry, 
    Quite right!  Although my post simply meant to say that this was
    another example of a deep diffusion process, I may be in error. 
    AGTA seems not to quite know what the process is though their
    preliminary report seems to indicate that it is internal diffusion
    caused by the breakdown of rutile inclusions already present within
    the gem.  This is, of course, exactly what happens in traditional
    heat treatment, the breakdown of titanium causing the material to
    turn bluer.  Something, however, is different.  These photos show a
    visual scene that is quite unlike anything I have seen under the
    microscope before, other than deep diffusion.  Guess we will have to
    wait for updates.  None the less, scary! 

My apologies,
Richard


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