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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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Tools
Research
Jewelry Television in Tucson
Tairus Hydrothermal Synthetic Sapphires Doped with Nickel and Chromium
Rainbow-Colored Partially Healed Fissure in Blue Sapphire
Sapphire and Garnet from Kalalani, Tanga Province, Tanzania
Finds from the Secondary Market
Dave Bindra shows some noteworthy pieces he obtained on the secondary market and shares his thoughts on the state of the colored stones market.
