Gem Refractometer

Product Description

The Gemstone Refractometer, is the primary and most powerful tool in identify and authenticate polished precious and semi-precious gemstones and observing the optical properties and the structure of gemstones.

• Measuring Range : 1.30 - 1.81 RI 
• Minimum Graduation : (RI) 0.01 RI 
• Illumination : Internal Light Source with momentary/power switch 
• Dimension : 35mm x 63mm x 115mm Scale 
• Division : 0.01 nD 
• Weight : 0.4 kg 
• Ranges of Application : Laboratory Gemology Filter : Polarizing filter 
• Power Source : 3 x 1.5V AG13 button batteries 
• Color : Black