Colour filter
With special colour filters, some ornamental stones and gemstones can be distinguished by colour changes when looking at them. The Chelsea filter and the ruby filter are preferred for this gemstone examination. They are particularly suitable for differentiating between different gemstones viewed together, for example for checking a gemstone lot. The stones can be rough or polished – the different colour reactions when viewed through the respective colour filter are decisive.
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Chelsea Filter CF100
Dichromatic filter to differentiate between different gemstones viewed together, makes colour changes visible
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Ruby filter RF100
Colour filter for assessing cut and unpolished red and pink stones, makes color changes visible
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MKTV5 display
Very well suited for the clear presentation of microscopic examinations with excellent image quality
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Small mobile gemstone laboratory KA41KRS
Fully equipped, high-quality and mobile test laboratory, offers standard equipment of gemological devices that experts need
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Magnifying Glasses / Triplet LB010
Magnifying glasses: Working distance: 270-300 mm, eye relief: 56-74 mm, field of view diameter: 50 mm, magnification: 2.3x.
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Table-top polariscope PK 14 LED
High-quality table-top device with an integrated, mains current-operated LED light source for investigating optical properties.
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