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Durston 1114
High quality electronic microscope
Made of chrome-vanadium steel
Overall: Ø140mm x 10mm
Overall size: 190 x 35 x 50mm
2.84ct Octagon Cut Sapphire 8.7x7.1mm Bergeon 4235 Die Holder Durston 1114Sapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur in orange, yellow, green, brown, purple, pink, black and colourless. Red and reddish pink coloured corundum is referred to as ruby. 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
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