Gemological Gemstone Gem Refractometer Built-in Light, Professional Machine Gemstone Refractive ldentification Gem Refractometer

Description

Gemstone refractometer index is a very important optical parameter. The gloss of the gem can be determined by this parameter.All kinds of gems can be determined according to the index of refractive index, because different gemstones have fixed refractive index.In addition, double refractive index can also be measured.This parameter can be used to determine whether a gem is a uniaxial crystal or a biaxial crystal.This kind of gem refractometer is small and light.Easy to carry, very popular in jewelry industry.Product specifications:1. Measurement range: 1.30 ~ 1.81RI.2. Minimum dividing value: 0.01RI.3. Size: 30*70*130mm.Product packaging:1*Gem refractometer.1*The flashlight