refractometer gem

Brand Name:FABLE

Model Number:FGR-002J

Place of Origin:Guangdong, China

Index Of Refraction Testing Instruments For Inlaid Gemstone FGR-002J Model number: FGR-002J Type Testers & Measurements Testing scale 1.35-1.85 Accuracy 0.002 Color White Size 120mm*42mm*80mm Power supply Two No. 7 batteries or externally connected wide ...

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. ...