# How do you find the refractive index of a gemstone?

Contents

## What is the refractive index of a gemstone?

Refractive Indices and Double Refraction Values

Gemstone Refractive Index Double Refraction
Sapphire (corundum) 1.762-1.778 0.008
Benitoite 1.757-1.804 0.047
Shattuckite 1.752-1.815 0.063
Chrysoberyl 1.746-1.763 0.007-0.011

## How do you find the refractive index of a diamond?

The refractive index of a diamond is about 2.4. To calculate the refractive index you divide the speed of light in a vacuum by the speed of light in

## How do you find the refractive index of a solid?

The refractive index of the test plate, referred to that of the surrounding medium, can be obtained by measuring the optical-path differences introduced between a ray through and a reference beam outside the plate by two successive rotations, which change the angle of incidence.

## How do you find the refractive index of Class 10?

The refractive index is the measure of bending of a light ray when passing from one medium to another. It can also be defined as the ratio of the velocity of a light ray in an empty space to the velocity of light in a substance, n = c/v.

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