gemological refractometer gemstone testing instrument

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:FGR-003

Place of Origin:Shenzhen, China

...Testing Instruments Refractometer with Testing range 1.35-1.85 The refractometer is one of the most important tools in a gemological laboratory. It indicates the refraction index of a gemstone, which often gives vital clues to the identity of a gemstone. Refractometer Fable brand with. Many gemstones are double refraction(birefringence) on optical character. For the gemstones,you must test...

Brand Name:FZLink

Model Number:RHG-181

Place of Origin:FuZhou China

Optical equipments for Gem built-in Led jewelry Hand-Held refractometer Product description The Gem Refractometer is an important instrument which measures the refractive indices of stones. It has a pull out eyepiece and a high quality lens that gives ...

Brand Name:HiYi

Model Number:LH-SA28

Place of Origin:China

LH-SA28 Digital Refractometer Salinity Test Meter OVERVIEW The instrument adopts the optical principle and specializes in measuring the salt content in water samples and food. The instrument has the advantages of simple and fast operation, high sensitivity...

Place of Origin:China

Brand Name:CNOEC, OPTO-EDU

Model Number:A24.6356

...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...

Brand Name:yieryi

Model Number:RHB-32ATC

Place of Origin:China

... is the design principle of the product. Refractometer is an test instrument to test liquid by using light ray. Usage Refractometer is a precision optical instrument, featuring in simple use, accurate measurement, light weight, small volume and etc. By

Brand Name:Shengtai Instrument

Model Number:ST121

Place of Origin:CHINA

The ST121 Abbe refractometer is an instrument capable of measuring the refractive index ND and average dispersion NF-NC of transparent, translucent liquids or solids. With a thermostat connected to the instrument, it is possible to measure the refractive ...

Brand Name:BAGPLASTICS@VIP.163.COM

Model Number:WHATSAPP: +8613780964661

Place of Origin:CHINA

Honey Refractometer Fruit Sugar Tester 0-95% Scale Range Honey Moisture Tester High-Precision Handheld Home Refractometer Quick Detection: disposable-consumables.com 2 seconds of quick measurement, with accuracy and speed. Single-button power-on can drop ...

Brand Name:Xinyuan

Model Number:FA-6100

Place of Origin:China

Hot Selling Good Autorefractometros Opthalmic Auto Refractometer/keratometer Optical Instruments Xinyuan FA-6100 GR8905 Features: 1. 5.7’’ screen; 2. Auto & Manual mode optional Specifications: 1. Sph: ‐20D to +20D(VD=12mm,0.12D/0.25D steps); 2. Cyl: ‐8D...

Brand Name:BAXIT

Model Number:BXT- WZZ2B

Place of Origin:China

Introduction to Automatic Polarimeter An optical rotation meter is an instrument for measuring the optical rotation of substances. Through the measurement of optical rotation, one can analyze and determine the concentration, content and purity of ...

Brand Name:ZKZDiamonds

Model Number:VPPL001

Place of Origin:SHENZHEN

... pink lab grown diamonds with official certificate from the International Gemological Institute (IGI). The world's largest independent laboratory for testing and grading gemstones and fine jewelry. Product Specfications: Diamond carat weight 1-1.5ct ...

Brand Name:SILIAN

Model Number:Customized

Place of Origin:Chongqing，China

... difference from natural corundum can be measured by basic gemological characteristics such as microscopic characteristics, dichroism and spectrum, and large instruments such as XRF can also be used for testing. Specification property Sapphire Density 3