Professional 0.002 Accuracy gemstone refractometer with Brightness
Gem Refractometer is one of most important tool to test the
refractive index. Gloss of gem can be estimated by the parameter.
The kinds of gem can be precisely determined in accordance with the
measured value of refractive index because every kind of gem has
its inherent refractive. Besides, index of double refraction can be
also measured. Through the parameter you can judge whether a gem is
uniaxial or biaxial photopositive or photonegative. The gemological
refractometer is characterized by small volume and less weight. It
is easy to carry. It is a popular instrument used in jewelery
Model number: FGR-002A
High hardness CZ test prism
Scale range: 1.35-1.85
Working table: stainless steel table.
By advanced optic system, shadow edge is straight and sharp, easy
to read it.
There are two ways of inputing the voltage: 2 x AAA battery and
DC3V direct current suply (AC100-240V).
2ml refractive index Liquid (1.78±0.005) with unique design of the
bottle (Proprietary technology ZL200620096730.7).
Package: Aluminum alloy box packing
Comparing to the model FGR-002, this one with a switch can be
adjusted the light brightness.
Gemological laboratory, gemology school, gem and jewellery
Equipped with Polarizing piece and a bottle of Refractive Index
Refractive Index : 1.785±0.005
- Particularly designed bottle
- Not easy to be broken
- Not easy to be splashed
- Easy to control dropping amount
- Safe, economy and convenient