From The Gemology Project
Sapphire_heated.jpg (650 × 567 pixels, file size: 232 KB, MIME type: image/jpeg)
Many included crystal surrounded by tension halos due to heating. 20 cts Sri-lanka sapphire
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|current||12:45, 2 November 2009||650 × 567 (232 KB)||Barbra||Many included crystal surrounded by tension halos due to heating. 20 cts Sri-lanka sapphire|
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