Main Products: Gem Refractometer ,Gem Microscope ,Table Spectroscope ,Polariscope ,Diamond Color Grading Lamp
Gemological Refractometer
Negotiable /Piece
Min.Order:10 Pieces
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Shenzhen Fable Jewellery Technology Co., Ltd.
Business Type: Manufacturer,Trading Company
Shenzhen Guangdong ChinaMain Products: Gem Refractometer ,Gem Microscope ,Table Spectroscope ,Polariscope ,Diamond Color Grading LampProduct Details
Gemological Refractometer
1.High hardness CZ test prism Scale range:1.35-1.81
2.Error: ±0.003 Aluminum alloy,easy to clean
3.By advanced optic system,shadow edge is straight and sharp,easy to read it
4.There are two ways of inputing the voltage:7batteries and DC3V direct current suply(AC100-240V).
5.2ml refractive index Liquid(1.78±0.005) with unique design of the bottle(Proprietary technology ZL200620096730.7)
It is much safer ,much ecnomical and more convinent.
Refractive Index of gemstone, as follow:
| 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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