Refractive Index Liquid Series M 1.81 For Gempro Refractometer Du-Matt Two solid brass bars with

Two solid brass bars with wood lining for protected

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Refractive Index Liquid Series M 1.81 For Gempro Refractometer Du-Matt Two solid brass bars withRefractive Index Liquid Series M 1. 81 is formulated for use with the GemPro Refractometer to obtain accurate gemstone refractive index readings. This contact liquid creates the necessary optical interface between the stone and prism, ensuring clear shadow edges and reliable measurement results. Features Series M refractive index liquid rated at 1. 81 Designed for use with the GemPro Refractometer Provides proper optical contact between gemstone and