81 - 90 of 93
hardness gem testing instruments
Selling leads
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... in detecting new treatments and new-type synthetics Product Description Fable Generation 3rd of Arm type gem microscope,with classical base and ...
2024-12-09 11:36:02
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...Gem polariscope with white LED cold sources FPP-30 Model number: FPP-30 A polariscope uses polarized light for gem identification. Two polarising ...
2024-12-09 13:30:01
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...negative inclusions as well as for spotting polysynthetic twinning. A polariscope uses polarized light for gem identification. It consists of two ...
2026-06-21 00:06:52
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... 75mm*18mm Function Observing the spectrum of Gem and Jewelry Portable Yes Color Black Focus not adjustable Resolution High Resolution Description: ...
2026-06-21 00:06:52
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...structure and optical properties of precious stones or minerals. The stone is tested by rotating it 360° between the crossed polarising filters. ...
2024-12-09 10:57:50
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...gem stone with dying color Body case Metal Size 55x35x10mm Description: Chelsea filter is colordisc only allow the light of deep red and kelly to ...
2026-06-21 00:06:52
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... plating outer casing The loupe is the most widely used and most familiar gem-identification instrument. It is the first of the three most ...
2024-12-09 10:54:02
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...Triplet Loupe Drop Type The loupe is the most widely used and most familiar gem-identification instrument. It is the first of the three most ...
2024-12-09 13:19:42
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Portable With Monochromatic Light Filter gemological refractometer FGR-003A Model number: FGR-003A Type Testers & Measurements Testing scale 1.35-1.85 ...
2026-06-21 00:06:52
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Gemology Equipment With 0.002 Accuracy With Polarizing Lens hand refractometer Model number: FGR-002A Type Testers & Measurements Testing scale 1.35-1...
2026-06-21 00:06:52
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