7: Optical Properties of Gemstones Last updated Save as PDF Page ID3213 Contributed by gemologyGemology Project 7.1: Optical Properties of Gemstones7.2: Nature of Light7.3: Reflection7.4: Adding Arrows7.5: Luster7.6: Sheen7.7: Brilliance7.8: Polarization7.9: Pleochroism7.10: Color7.11: Color Grading7.12: Causes of Color7.13: The Phenomenon of Color Change7.14: Refraction7.15: Double Refraction7.16: Dispersion7.17: Diffraction7.18: Interference7.19: Luminescence7.20: External Links
