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UV light testing
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=34&t=24784
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Author:  Mazyar [ Sat Nov 03, 2018 3:10 am ]
Post subject:  UV light testing

Hi all
I am new in gemmology and I want to ask my question in here from those pro gemmologistnput there.

I have done research and study about using UV light to distinguish between gems quality and treatments but does that UV light works same on the rough stones? If no polished facet exist does the UV light pass the surface of the unpolished stone? Does that cobalt or glass field stone show up same as polished stone?

Anyone experienced it , many appreciate
Maz

Author:  Barbra Voltaire, FGG [ Sat Nov 03, 2018 1:49 pm ]
Post subject:  Re: UV light testing

http://www.ruby-sapphire.com/heat_seeke ... scence.htm

Author:  j.mcgee_1985 [ Sat Nov 03, 2018 6:10 pm ]
Post subject:  Re: UV light testing

Interesting read

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