January 24 Through February 4—TUCSON, ARIZONA: Annual show
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 Post subject: More on cobalt Pb flux "healed" corundum
PostPosted: Thu Feb 21, 2008 8:48 pm 
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Some more information on the cobalt colored lead flux "healed" corundum hitting the market. This is the initial alert from the GIT and a follow-up report from the GAAJ. Did anyone run into any of this at Tuscon or see any in their lab yet? I have not actually seen it, but hope to study some when I go back to Thailand in the Spring and see my friends at the GIT.


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PostPosted: Fri Feb 22, 2008 2:03 am 
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i get the newsletter from palagems-there was something in the news about sapphire being treated with something-lead and cobalt? in china or japan?


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PostPosted: Sun Feb 24, 2008 4:15 pm 
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Joined: Mon Oct 17, 2005 2:52 pm
Posts: 241
Location: France | French Riviera
I have not seen any sample of this treated corundums at the moment.
May be theses stone have not reach our gem market (France)?
So, I am interested too found a sample for my personnal studies and my samples of references.
If anyone can help me having this kind of treated corundum, I will be happy.

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Jean-Marie Arlabosse
GemInterest.com


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