fable gemology spectroscope

Brand Name:Fable

Model Number:FGS-1A

Place of Origin:China

.... Materials can absorb parts of the electromagnetic spectrum, and when the absorbed parts fall within the visible range, that absorbed part will influence the color of the material. When a gemstone is observed with a spectroscope, the absorbed parts

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

Place of Origin:China

Brand Name:CNOEC, OPTO-EDU

Model Number:A24.6356

...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 ...