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. Available in 2 types Type A:-Flashlight outside Type...
The Refractometer has readings 1.31 to 1.81, with pullout eyepiece, give clear focus and reading polarizing, filter monochromatic filter and light source, supplied with 1.80RI liquid ...
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