- REFRACTIVE INDEX FLUID OIL: The refractive index fluid is gemologist tool for identifying refractive index.
- This fluid is packed and will be supplied in an glass vial and contains 3ml of solution each bottle
- PROFESSIONAL & PRACTICAL: Perfect for testing all of your gem stones, this is essential for gemologist. We absolutely think you’ll love this refractive index fluid
- GEM PRECISION MEASUREMENT: The product allows your refractometer to measure within the measuring range of 1.30 to 1.80 refractive index
- PROFESSIONAL: This liquid can also be used to reduce or eliminate glaring from a gem’s surface