### 7.4.6 consts.inc - IORs

`Air_Ior` = 1.000292
`Amethyst_Ior` = 1.550
`Apatite_Ior` = 1.635
`Aquamarine_Ior` = 1.575
`Beryl_Ior` = 1.575
`Citrine_Ior` = 1.550
`Crown_Glass_Ior` = 1.51
`Corundum_Ior` = 1.765
`Diamond_Ior` = 2.47
`Emerald_Ior` = 1.575
`Flint_Glass_Ior` = 1.71
`Flint_Glass_Heavy_Ior` = 1.8
`Flint_Glass_Medium_Ior` = 1.63
`Flint_Glass_Light_Ior` = 1.6
`Fluorite_Ior` = 1.434
`Gypsum_Ior` = 1.525
`Ice_Ior` = 1.31
`Plexiglas_Ior` = 1.5
`Quartz_Ior` = 1.550
`Quartz_Glass_Ior` = 1.458
`Ruby_Ior` = 1.765
`Salt_Ior` = 1.544
`Sapphire_Ior` = 1.765
`Topaz_Ior` = 1.620
`Tourmaline_Ior` = 1.650
`Water_Ior` = 1.33