Gemvue Gemstone GEM Refractometer - Gemology Gemologist GIA
GEMVUE PORTABLE REFRACTOMETER WITH EXTERNAL LIGHT SOURCE AND RI FLUID. THE REFRACTOMETER IS A MUST HAVE IDENTIFICATION TOOL FOR ANY GEMSTONE ENTHUSIAST. BOTTLE OF FLUID IS 2ML.
GEMVUE PORTABLE REFRACTOMETER WITH EXTERNAL LIGHT SOURCE AND RI FLUID. THE REFRACTOMETER IS A MUST HAVE IDENTIFICATION TOOL FOR ANY GEMSTONE ENTHUSIAST. THIS MODEL COMES COMPLETE WITH A SLIM INCANDESCENT FLASH LIGHT, 2 OZ BOTTLE OF RI FLUID, AND ALUMINUM CARRYING CASE. THE REFRACTOMETER FEATURES A BLACK MATTE FINISH, 15MM EYEPIECE WITH POLARIZING FILTER, AND EASY TO READ SCALE THAT MEASURES UP TO 1.81 RI. THE ALUMINUM CARRYING CASE OFFERS GREAT PROTECTION WHILE TRANSPORTING OR STORING. THE REFRACTOMETER MEASURES 4.5 INCHES LONG, 1.25 INCHES WIDE BY 2.25 INCHES TALL. THE CARRYING CASE MEASURES 7.5 INCHES LONG BY 2.75 INCHES WIDE BY 4.5 INCHES TALL. THE SLIM FLASHLIGHT REQUIRES 2 AAA BATTERIES (NOT INCLUDED).
THIS LISTING IS FOR REFURBISHED UNITS ONLY
Range: 1.30-1.81 Refractive Index (RI)
Resolution: +/- 0.01 RI
Accuracy: +/- 0.01 RI
Dimension: 4.5" x 1.25" x 2.25"
Weight: 400 Grams
Sturdy, Portable Design made of die cast aluminum, not plastic like the GIA ones
Perfect for the GIAStudent, Hobbyist AND Professional!
This item is an exceptional Value! Quality Unit, Right RI Fluid!
THIS UNIT WILL HELP YOU DETERMINE WHICH GEMS ARE REAL AND WHICH ONES ARE FAKES!
THIS UNIT HAS ITS OWN INTERNAL LIGHT SOURCE! NO FLASHLIGHT!
This unit is helpful in Testing for Cabochons, as well as, testing for Double Refraction!
How does it work?: The refractometer works by the use of a glass hemicylinder inside that has a flat surface extending into the body of the refractometer. When light is introduced into the back of the unit, it travel through the glass hemicylinder and up to the gemstone, where the stone is in optical contact with the glass by use of a refractive index liquid. This liquid keeps air from between the stone and the glass hemicylinder and allows light to travel at the same speed through the glass, gets refracted by the gemstone, and then back through the glass hemicylinder to the viewing lens. The amount of slowing down or bending of the light that the gemstone does to the light beam, causes a light and dark area joined by a thin green line. This green line is the refractive index reading of the gemstone.
This type of unit sells for $595.00 and up at most retailers. Get yours today at Wholesale prices!
* Black Vinyl Soft Case
* Polarizing Filter
* Monochromatic Light Filter
* Internal light - Standard wavelength 589nm - runs off (3) 1.5 volt button cell batteries (included)
* 1.8ml Vial of 1.800 Refractive Index Oil
* Users Guide, BEGINNERS HOW-TO Guide
* Gem Chart - 140+ stones on it!
Comes with a 5 year warranty against any defects, so you can buy with total confidence. This unit is made of die cast aluminum and has a smooth finish. It is not made of plastic like the $600 units out there!
National Industrial Supply
30777 Rancho California #891420
Temecula, CA 92589, USA
Fax: 310.733.5480 - E-mail - firstname.lastname@example.org - Website: www.nisupply.com
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