Gemstones with RI 1.485

5 gemstones have a refractive index range that includes 1.485. Refractive index measures how much light bends when entering a gem — it's one of the most diagnostic properties for identification. Measured with a gemological refractometer.

← All RI Values

GemstoneRI RangeSG RangeCrystal SystemOptic Character
Hackmanite1.483 – 1.4872.14 – 2.40CubicSR
Sodalite1.483 – 1.4872.14 – 2.40CubicAGG
Moldavite1.480 – 1.5102.32 – 2.38AmorphousSR
Obsidian1.480 – 1.5102.30 – 2.60AmorphousSR
Chrysocolla1.460 – 1.6302.00 – 2.40AmorphousAGG
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