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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
each engineered for a distinct working hardness
At 170mm (6‑3/4") in length
Block Dimensions 145 x 178mm Number of Cavities 31 half-spheres Cavity Size Range 2–32mm Block Style Flat Country of Origin Italy Brand OMO
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Chain Style Cable Width 1
Refractive Index Liquid Series M 1.81 For Gempro Refractometer Prop 65 - Tetrafluoroethylene each engineered for a distinctRefractive 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
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