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For determination of the refractive index, a parameter for the quality and classification of gemstones. Krüss refractometers give you exceptionally crisp, sharp readings and a large field of view.
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Microscopes with precision optics for the examination of diamonds and gemstones. Stereo, stereo zoom and tilting microscopes with reflected and transmitted light, darkfield and fiber optic light source.
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To observe emission- and absorption spectra. Most gemstones show a characteristic behavior to absorption. With a spectroscope you can characterise the gemstone by determining the wavelength of the absorbed light.
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A portable laboratory!
You can take your Gem Travel lab with you almost anywhere . All you need for a sophisticated gemstone examination is packedA in a shockresistant aluminum trolley case. The equipment runs on external power, on its long-life battery or on your 12V automobile battery.
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All instruments for testing and characterizing gemstones. Diamond tester, proportionscopes, proportion eyepieces, gem gauges, dichroscopes, polariscopes, hardness pins, filter, scales, immersion liquids
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UV-lamps with special filters for long- and short-wave light.
Analysis lamps with daylight LED eg. to determine the luminescence of UV radiation the so-called fluorescence and phosphorescence created by disturbances in the crystal lattice. To identify synthetic or composite gems, genuine- or formed pearls.
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This eyeglass magnifier gives you stereoscopic short distance viewing and leaves your hands free for work.
Loupes made by A.KRÜSS Optronic are equipped with qualitatively high-quality and distortion-free lenses. Large selection of types and qualities cover each need. Magnification from 10x to 28X
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Scientific books on gemstones and gemstone diagnostics, gem tables for the determination of syntheses, artificial products and imitations.
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