Learn to Use a Refractometer (Video)
This refractometer tutorial video will show you how to find a gem's refractive index, birefringence, optic character, and other properties.
By Kyrylo Gubariev, Graduate Gemologist (GG, AJP), Addison Rice, updated on
Are you having trouble taking refractometer readings? This tutorial video will demonstrate how to determine a gemstone's refractive index, optic character, and other properties with this instrument. Your refractometer can provide important clues for accurate gemstone identification.
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