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Fable Safer and Ecnomical Gem Refractometer With Birefringence
Negotiable
MOQ: 50 Pieces (Price negotiable depending on order volume and customization)
Key Specifications
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Place of Origin:
Guangdong, China
Brand Name:
Fable
Model Number:
FGR-003
Payment & Shipping
Payment Methods:
Port of Shipment:
Shenzhen
Delivery Detail:
Delivery time depends on order quantity.
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Place of Origin
Guangdong, China
Brand Name
Fable
Model Number
FGR-003
Size
222*182*80 MM
Weight
1 KG
Measurement Accuracy
0.003
Min. Div.
0.001
Measurement Range
1.35-1.85
Fable safer and ecnomical gem refractometer with birefringence
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.
Specifications
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 |
It is much safer ,much ecnomical and more convinent
| 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± |
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Business Type
Manufacturer, Trading Company
Year Established
2008
Factory Size
1,000-3,000 square meters
Total Employees
11 - 50 People
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