Instruments used in gemology Part IV- Dr Shihaan’s Guide

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Click here to go to Part III 12) Electronic Diamond Tester There are many different types of electronic diamond testers in the market. Electronic diamond testers are portable and battery powered Presidium Electronic Diamond Tester All electronic diamond testers test the ability of the stone to conduct heat. That is they test the thermal conductivity. […]The post Instruments used in gemology Part IV- Dr Shihaan’s Guide appeared first on Internetstones.COM.