Heating Red Zircon

Posted on May 13, 2014 in Gemology, Journal, Transformations | No Comments
Heating Red Zircon

In 2011, I purchased this zircon rough in Tanzania. Zircon from Singeda, Tanzania is often a super-saturated, near-black shade of red. In reflected light, the stone appears near-black, but it is red in transmitted light. I cut the stone in a cut-corner square brilliant of my own design. But this kind of zircon is so […]