Exhibits, Shows and Displays

Is it possible to measure the refractive index off a picture that displays the reflection at all decrees ?

I have a photograph that displays the reflection of the gem at all possible angles decrees around the entire stone . On a diamond what decree is each light beam .

Public Comments

1. It's still possible, but you can no longer make use of the optical method involving the Brewster angle of reflection. You'll have to turn to another method, like measuring some of the materials dielectric properties (for instance, the electric susceptibility) in order to evaluate the index of refraction in such a case.
2. Sorry this will not work. You have to remember that a photograph is a 2 dimensional representation of a 3 dimensional object and although angles may look the same they are in fact not. Nor will any stone, no matter how well cut, have angles accurate enough to make a useful scientific instrument. The only thing you can make a guess at from such a picture is the degree of dispersion a stone has and even that is ONLY a guess.