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GGTL Newsletter No. 2, Oct. 2013
https://gemologyonline.com/Forum/phpBB2/viewtopic.php?f=55&t=18907
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Author:  mikko [ Tue Oct 29, 2013 3:21 am ]
Post subject:  GGTL Newsletter No. 2, Oct. 2013

October 2013 newsletter from GGTL Laboratories is out.

Including:

GGTL Laboratories web site
Monocrystalline CVD synthetic diamonds
HIH synthetic diamonds are more frequently encountered
The consequences of very high temperature heat treatment of blue sapphire.
A bicolored purple and blue "Maxixe" type beryl
Fissure filling of aquamarine with epoxy resin
Calcitic pearls of apparent green color

Author:  danielle [ Tue Oct 29, 2013 3:51 am ]
Post subject:  Re: GGTL Newsletter No. 2, Oct. 2013

Hi mikko !

Thank you :)

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