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Specifications

Gem Refractometer

The index of double refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
Scale range:1.30-1.81 RI
Minimum Division: 0.01RI

With more than a decade experience in this field, we assure you that you will find SinoTech is your good partner once we have chance to offer our service to you!