gem refractometer

Place of Origin:China

Brand Name:CNOEC, OPTO-EDU

Model Number:A24.6356

Gem Test Kit Jewelry Microscope Handheld Polariscope A24.6356 A24.6356-A Travel Lab An Ideal Toolkit For Laboratory Testing A24.6356-B Gemological Lab Special For Students And Gemologists A24.6356 Gem Test Kit A24.6356-A Travel Lab A24.6356-B Gemological Lab A24.6321-A Handheld Refractometer A24.6321-B Handheld Refractometer Handheld Polariscope Handheld Spectroscope Handheld Spectroscope (Adjustable) Iceland Spar Calcite Dichroscope Gem...

Brand Name:Fable

Model Number:FID-1A

Place of Origin:Guangdong, China

...Gem Pleochroism Big eyepiece Small rotating Calcite Dichroscope FID-1A Product Description: Calcite Dichroscope is a regular test instrument which special used to observe the polychroism of gem.In some cases Polychroism is the foundation to judge the gem, especially when the Refractometer, Polariscope and other instruments can't judge the color gem...

Brand Name:VANCO

Model Number:FGR-003

Place of Origin:CHINA

... of a gemstone, which often gives vital clues to the identity of a gemstone. Fable brand Refractometer provides a numerical reading from a scale you see when you look through the eyepiece and determine whether a stone with single or double refracting by

Brand Name:Fable

Model Number:FGK-20

Place of Origin:China

...Gem Testing Lab with interference ball A professional gem testing toolkit, includes nearly all the needed gemological instruments. It includes: 1.Gem Microscope: a.Eyepiece:F10X/20. b.Magnification:7X-40X. c.Working distance:90mm. d.With Gem Clip. 2. Refractometer: a. with CZ testing table, b. ...