Shenzhen Fable Jewellery Technology Co., Ltd.: Shenzhen, Guangdong, China; Main products: Gem Refractometer, Gem Microscope, Table Spectroscope, Polariscope, Diamond Color Grading Lamp

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Home > Products > Gem Refractometer > Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table

$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$
$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$
$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$
$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$

$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$
$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$
$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$
$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$

Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table

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Product Details

Place of Origin	Guangdong, China	Brand Name	Fable
Model Number	FGR-003	Size	22218280 mm
Weight	1 KG	Measurement Accuracy	0.003
Min. Div.	0.001	Measurement Range	1.35-1.85

Product Description

Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table

Specifications:

Jewelry Refractometer measures the refractive index of your gems. Besides the RI, a refractometer will also give you the birefringence and optic sign. When possible, it is easier to obtain the optic sign from a polariscope. However, that can’t always be done, so you need the refractometer as an alternate means to determine the optic sign when necessary.

As the refractive index of the gemstones are fixed, the RI value becomes a very important reference data; naturally, a Gem Refractometer is absolutely essential for gem identification.

Details:

Material	Aluminum alloy table
Testing Range	1.35-1.85
Accuracy	<=±0.003
Light Source	Built-in Monochrome LED light
Power	Batteries/ DC 3V
Refractive Index Liquid	1.785±0.005
Scale Division	0.01 RI
Filter	Polarizing Filter
Packaging	Metal Box

The following index of the gemstone for your reference:

name	R.I.	birefringence	name	R.I.	birefringence
Opal	1.42-1.45		Apatite	1.634-1.638	0.004
Fluorite	1.45		Peridot	1.654-1.695	0.035
Glass	1.51-1.82		Jadeite	1.66±
Sodalite	1.483-1.487		Diopside	1.675-1.701	0.026
Lapis lazuli	1.50 or 1.67		Syn.spinel	1.728±
Moonstone	1.52-1.54		Chrysoberyl	1.746-1.755	0.01
Chalcedony	1.53-1.54		Hydrogrossular	1.730-1.740
Lolite	1.544-1.553	0.01	rundum	1.762-1.770	0.008
Crystal	1.544-1.553	0.009	Almandite	1.79±0.03
Beryl	1.56-1.59	0.008	Ruby&Sapphire	1.762-1.770	0.008
Turquoise	1.61-1.65		Zircon	1.925-1.984	0.059
Nephrite	1.61±		CZ	2.08-2.20
Topaz	1.61-1.640	0.009	Strontium titanate	2.409
Tourmaline	1.620-1.644	0.02	Diamond	2.417
Anslusite	1.634-1.643	0.01	Spinel	1.718-1.785
Obsidian	1.50±

$Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table$

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Shenzhen Fable Jewellery Technology Co., Ltd.: Contact nameCelina K
Chat Now; Phone86-755-89583846-809; AddressPinghu, Shenzhen, Guangdong

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Product Categories

Jewelry Magnifier	Weighing scale	Ultrviolet Fluorescent Lamp	Ultrasonic Clearing Machine
Spectroscope	Professional Equipments	Polariscope	New Products
Light Source	Accessories	General Gem Tools	Gem Testing Toolkit
Gem Refractometer	Gem Microscope	Diamond Presidium Testers	Diamond Color Grading Lamp
Chelsea Filter	Calcite Dichroscope

Table Gemstone Refractometer with Accuracy of 0.003 and CZ Testing Table

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