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Oiler and Round Tray
Vallorbe 1464 - Swiss Made
Micro-controller uses 8MHz external crystal
Half Round (6
x12 magnification
0.81ct Round Faceted Blue Sapphire 5.4mm Horotec MSA 03.622 Oiler and Round TraySapphire 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: