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Quench-crackled blue synthetic spinel
Quench-Crackled Blue Synthetic Spinel

A synthetic spinel has undergone quench-cracking treatment, possibly to make it appear a natural specimen.

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G-G Spring 2015
Spring 2015 G&G Examines Blue Spinel, Chinese Jewellery Design and the Latest in Synthetics

G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.

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