- Refractometers[10]
- Bean Product Processing Machinery[1]
- Testing Equipment[10]
- Jewelry Tools & Equipment[10]
- Temperature Instruments[6]
- Weighing Scales[4]
- Fiber Optic Equipment[5]
- Microscopes[2]
- Hardness Testers[7]
- Force Measuring Instruments[1]
- Gauges[2]
- Other Optics Instruments[2]
- Diesel Generators[7]
- AC Motor[7]
- Contact Person : Ms. wu Josie
- Company Name : Fuzhou Hedao Trade Co., Ltd.
- Tel : 0086-591-88280227
- Fax : 0086-591-88280227
- Address : Fujian,Fuzhou,Unit1704,5# Building, South of ChangLe Road, Taijiang District, Fuzhou, China.
- Country/Region : China
- Zip : 350011
hot product!! Stainless Steel table CZ prism LED light source gemstone refractometers/Gem Refractometers
Gem Refractometers
A Jewelry Refractometer measures the refractive index of your gems. Besides the RI, a refractometer will also give you the birefringence and optic sign. When possible, it is easier to obtain the optic sign from a polariscope. However, that can’t always be done, so you need the refractometer as an alternate means to determine the optic sign when necessary.
As the refractive index of the gemstones are fixed, the RI value becomes a very important reference data; naturally, a Gem Refractometer is absolutely essential for gem identification.
Material | Stainless Steel/CZ/Plastic |
Testing Range | 1.35-1.85 |
Accuracy | <=±0.002 |
Light Source | Built-in Monochrome LED light |
Power | Batteries/ DC 3V |
Refractive Index Liquid | 1.785±0.005 |
Scale Division | 0.01 RI |
Filter | Polarizing Filter |
Packaging | Metal Box |
hot product!! Stainless Steel table CZ prism LED light source gemstone refractometers/Gem Refractometers
