Round Faceted Pink Sapphire 3.25mm mainspring winder 10mm to 25mm Taper

10mm to 25mm Taper

Stone Size (mm): 24x22

5 * 4cm / 7

Portable Design: There is a back bracket for supporting multimeter

Round Faceted Pink Sapphire 3.25mm mainspring winder 10mm to 25mm TaperSapphire 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