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Unlocking the Secrets of Natural Gemstones: A Guide to Using Refractive Index TestingIntroduction:Natural gemstones are a wonder of the Earth's geological history, coveted for their beauty and rarity. Whether you're a gem enthusiast, a jeweler, or just a curious soul with an eye for the extraordinary, understanding how to test for the authenticity of natural gemstones is essential. One of the most valuable tools in a gemologist's toolkit is refractive index testing. In this blog, we'll delve int …