| Vacuum | 1.00000 (exactly) |
| Acetone | 1.36 |
| Air (STP) | 1.00029 |
| Alcohol | 1.329 |
| Amorphous Selenium | 2.92 |
| Calspar1 | 1.66 |
| Calspar2 | 1.486 |
| Carbon Disulfide | 1.63 |
| Chromium Oxide | 2.705 |
| Copper Oxide | 2.705 |
| Crown Glass | 1.52 |
| Crystal | 2.00 |
| Diamond | 2.417 |
| Emerald | 1.57 |
| Ethyl Alcohol | 1.36 |
| Flourite | 1.434 |
| Fused Quartz | 1.46 |
| Glass | 1.5 |
|
| Heaviest Flint Glass | 1.89 |
| Heavy Flint Glass | 1.65 |
| Ice | 1.309 |
| Iodine Crystal | 3.34 |
| Lapis Lazuli | 1.61 |
| Light Flint Glass | 1.575 |
| Liquid Carbon Dioxide | 1.20 |
| Polystyrene | 1.55 |
| Quartz 1 | 1.644 |
| Quartz 2 | 1.553 |
| Ruby | 1.77 |
| Sapphire | 1.77 |
| Sodium Chloride (Salt) 1 | 1.544 |
| Sodium Chloride (Salt) 2 | 1.644 |
| Sugar Solution (30%) | 1.38 |
| Sugar Solution (80%) | 1.49 |
| Topaz | 1.61 |
| Water (20 C) | 1.333 |
| Zinc Crown Glass | 1.517 |
| | |
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