Description

CL – 181 Refractive index is one of the most important optical parameters. A gloss of gem can be estimated by the parameters – 181 Refractive index is one of the most important optical parameters. A gloss of gem can be estimated by the parameter. The kinds of gem can be precisely determined in accordance with the measured value of the refractive index because every kind of gem has its inherent refractive. Besides, the index of double refraction can be also measured. Though the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative. The gemological refractometer is characterized by a small volume and less weight. It is easy to carry. It is a popular instrument used in the jewellery market.