Ade Advanced Optics ChelseaBK Chelsea Filter for Gem Testing
£27.32
It is used to determine whether a gemstone is natural or synthetic Can also be used for detecting synthetic blue spinel and for detecting dyes in certain gemstones This gemological tool is helpful for identifying certain red, blue and green gemstones
Ade Advanced Optics ChelseaBK Chelsea Filter for Gem Testing
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£27.32
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