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Grit values 60 coarse
Blue (50mm x 10mm) Tray
80mm with Drum Barrel
Steel base for your triblet
1.72ct Octagon Cut Sapphire 7x5.6mm GemOro Platinum PCT251 Premium Class Carat Scale 250ct x 0.005ct Grit values 60 coarseSapphire 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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