Index of Refraction Values

Chances are you won't run across a need for these unless you are studying light or you are a 3D artist. The index of refraction indicates the amount light bends as it passes through different substances. This isn't a complete list of values, but it does cover some very common substances.

Substance	Refraction Value
Air	1.0003
Alcohol	1.329
Amber	1.540
Amethyst	1.544
Crown Glass	1.520
Crystal	2.000
Cubic Zirconia	2.150
Diamond	2.417
Emerald	1.570
Flint Glass (light)	1.575
Flint Glass (heavy)	1.650
Fluorite	1.434
Glass	1.500
Ice	1.309
Milk	1.35
Quartz (crystalline)	1.544
Ruby	1.770
Salt	1.644
Sapphire	1.770
Sugar Solution (30%)	1.380
Sugar Solution (80%)	1.490
Topaz	1.610
Water (at 20 C)	1.333
Vacuum	1.000
Zinc Crown Glass	1.517