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Sapphire
The name “sapphire” can also apply to any corundum that’s not ruby red, another corundum variety.
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Jewelry Television in Tucson
A look at JTV’s history, current activities, and impact on the industry.
Rainbow-Colored Partially Healed Fissure in Blue Sapphire
An iridescent partially healed fissure is observed in a blue sapphire from Sri Lanka.
Prismatic Zircon in Kashmir Sapphire
Elongated zircon inclusions display attractive birefringent interference colors in a blue sapphire from Kashmir.
Tairus Hydrothermal Synthetic Sapphires Doped with Nickel and Chromium
Researchers of the Tairus joint venture have developed the technology for the hydrothermal growth of gem-quality crystals of synthetic sapphire.
Diffusion-Induced Blue Spinel-Like Layer on Natural Sapphire
Three natural sapphires exhibiting a surface layer of gahnite are studied at the GGTL laboratory.
