IOR, Abbe, Dispersion Database All Plastics Crystals Liquids Glass Miscellaneous Category Material IOR Abbe number Dispersion Dispersed IOR crystals Diamond (C) 2.4168 65.290323 0.011363 2.383885 crystals Diamond (C) Peter 1923 2.4173 55.3633 0.0134 2.3787 crystals Emerald 1.593 34.277457 0.009059 1.566759 crystals Ice (H2O) 1.3098 53.413793 0.003037 1.301002 crystals Quartz (SiO2) 1.4585 68.432836 0.003508 1.448337 crystals Salt (NaCl) 1.5442 42.850394 0.006650 1.524936 crystals Sapphire (Al2O3) 1.7682 72.471698 0.005551 1.752122 glass BK7 Glass 1.5168 64.119107 0.004221 1.504574 glass CORNING EAGLE XG® 1.5100 65.384615 0.004084 1.498169 glass Fused silica 1.4585 68.432836 0.003508 1.448337 123 1051015203050100