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Tanzanite or Amethyst?
Tanzanite 8%  8%  [ 1 ]
Amethyst 0%  0%  [ 0 ]
Other 58%  58%  [ 7 ]
The Presidium Testers are unreliable gemological tools 33%  33%  [ 4 ]
Total votes : 12
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 Post subject: Re: Tanzanite or Amethyst set in 14K?
PostPosted: Wed Dec 14, 2016 12:33 pm 
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Joined: Sun Oct 16, 2005 12:22 pm
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Location: San Francisco
Synthetic spinel was very common in mid-century birthstone jewelry.
It has a diagnostic LW and SW UV reaction.
Check it out!


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 Post subject: Re: Tanzanite or Amethyst set in 14K?
PostPosted: Fri Dec 16, 2016 6:53 am 
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annetok wrote:
Polariscope ?

Yes. And dichroscope. And a coach to teach you how to use them efficiently.


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 Post subject: Re: Tanzanite or Amethyst set in 14K?
PostPosted: Sat Dec 17, 2016 6:33 am 
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Isi wrote:
annetok wrote:
Polariscope ?

Yes. And dichroscope. And a coach to teach you how to use them efficiently.


Hehe, ok, will do :)


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 Post subject: Re: Tanzanite or Amethyst set in 14K?
PostPosted: Sat Dec 17, 2016 4:26 pm 
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In light of my response on August 13th to your inquiry, can you tell us why you disregarded it then, and, how much did your refractometer cost?


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 Post subject: Re: Tanzanite or Amethyst set in 14K?
PostPosted: Mon Dec 19, 2016 1:32 pm 
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I think we need to add the VO posts to another thread.......again. :D


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