Micro-Features of Ruby Chart

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32" x 20" (80 x 50 cm)This wall chart contains superbly detailed photomicrographs showing internal features observed in natural, treated, and synthetic ruby. Published in the Winte r 2017 issue with the article by Nathan D. Renfro et al., “Inclusions in Natural, Synthetic, and Treated Ruby,” Gems & Gemology, Vol. 53, No. 4, pp. 457-458. Usually ships in 3-5 business days. Enter code CHARTS20 to receive 20% off when you purchase 3 or more charts. SKU: 181220 Show more