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The gem refractometer is a compact refractometer with built-in LED illumination for the determination of the refractive index, quality control and categorization of gemstones.Each gem has a typical refractive index due to its chemical composition and crystallization structure. The gem refractometer can observe the optical properties and the structure of a gemstone. Through the parameters you can judge whether the gem is an anisotropic stone or isotropic stone. The stone needs a flat and polished facet. Contact liquid(RI Fluid) is also needed when testing.
Specifications
Accuracy 0.01 nD
Illumination Internal LED illumination with momentary switch
Measurement Range 1.30-1.81 nD
Size 110*38*60MM(L^W^H)
Scale Division 0.01 nD
Weight 0.5 kg
Ranges of Application Laboratory, Gemology
Filter Polarizing filter
