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| V3+ as colorant in gemstones (french) https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=13&t=14186 |
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| Author: | ethoreux [ Sun Jul 10, 2011 4:32 am ] |
| Post subject: | V3+ as colorant in gemstones (french) |
[pdfview]http://www.gemnantes.fr/documents/pdf/DUGs/Thoreux_DUG.pdf[/pdfview] |
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