Refractive index measurement

Refractive index measurement

Several methods are available for the measurement of refractive indices such as refractometer for total reflection, immersion method in liquid for Beck effect, shadow method, and minimum deviation method.

See Alexandrite Tsarstone collectors guide, Definition of Refractive index measurement, http://w.alexandrite.net/viewpage.html?id=GG-103-00005 (Several methods are available for the measurement of refractive indices such as refractometer for total reflection, immersion method in liquid for Beck effect, shadow method, and minimum deviation method.) (as of Apr. 09, 2026, 09:25 GMT).