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40mm square in brass for compliant materials
Professional in measuring copper
Software Version: V1
Material: Polyamide + Brass + Stainless Steel
Storage Temperature: -20 ~ 60°C
0.40ct Pear Shape Sapphire 6.1x4.0mm Bergeon Swiss 5901-P03 Ø3.33mm (Internal) Spline Tool 40mm square in brass forSapphire 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: