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Sleeved spring clip cleverly holds to spectacle frame with lens in path of vision – pivots away when not needed
Ideal for Jewellers and other precision work
Holes: Ø3
Overal length 260mm
Dapping block size: 75 x75mm
3.28ct Octagon Cut Sapphire 8.7x7.8mm Dumont Swiss Brass Tweezers Sleeved spring clip cleverly holdsSapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur. The variety in colours is due to trace amounts of elements such as iron, titanium, chromium, copper and magnesium. Mohs Scale of Hardness: 9 (out of 10). Sources: Mines that have yielded the finest sapphires in colour and clarity are located in Kashmir, Myanmar and Sri Lanka. Nowadays the main sources of sapphires are:
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