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When ruby is not ruby
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=21&t=23006
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Author:  GSK [ Fri Aug 19, 2016 2:45 pm ]
Post subject:  When ruby is not ruby

Actually 25 pictures looks like too many to post without adding each one to correct place in the text. So I decided to post like that. All pictures are available in full size and original resolution same as original PDF-file.

This little "research" has been initiated by John Dyer, who purchased both samples and shipped to me. Thank you, John, I really enjoyed this little work as it reminded me my past, when researches were main part of my life..

When ruby is not ruby, or how easy to destroy lead-glass filled corundum:

http://www.mediafire.com/download/5cv8h ... RT_ENG.pdf
[pdfview]http://gemologyonline.com/FINAL_RESEARCH_Report_Eng.pdf[/pdfview]

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