Refractive Index Fluid Oil, each 1.300-1.800 RI for Gem Refractometers, gemologist tool for identifying refractive index, efractometer to measure, 2 Bottles,each 3 ML - Brrnoo, Brrnoos8wgxk632h1248

• The Refractive Index Fluid: It is gemologist tool for identifying refractive index.Professional Identification Tools. Guaranteed After Sale: If there are any probl with the purchase, please feel to us, we will help to fix the problem within 24 hours! Suitable for: for testing all of your stones. Refractive Index Fluid allows your refractometer to measure within the measuring range of 1.30 to 1.80 refractive index. Contain: Refractometer Oil, This GL-01 fluid is packed and will be supplied in an glass vial and contains 3ml of solution. Function: This liquid can also be used to reduce or eliminate glare from a 's surface, facilitating inspection of the 's interior for inclusions and other defects.