0.70ct Cushion Cut Sapphire 5.2x4.3mm Testing Stone in Wooden Box

0.70ct Cushion Cut Sapphire 5.2x4.3mm Testing Stone in Wooden BoxSapphire 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

Hexagonal holes

1 (fine tips)

Length: 27

Durston 1506

Includes data hold

Dimensions: 170mm x 110mm x 500mm

Medium Inverted Cone

Opening maximum 15mm

Adopting 3 high sensitivity touch keys to make it easy to operate

Whether you miss curling up with a good book or piecing together jigsaw puzzles

Bergeon 4982

brass or wood