20.81ct Octagon Cut Tourmaline 20x12mm Sand Casting Flask 09 x 240 x 7

09 x 240 x 7

For tool C31480

Bar mould length adjustable from 10 to 50mm

1mm (range 10mm)

Insert size Ø30 x 17mm

20.81ct Octagon Cut Tourmaline 20x12mm Sand Casting Flask 09 x 240 x 7Tourmalines are found in a wide range of colours, pink, green, blue, orange, yellow, brown, black, and colourless. Bi coloured Tourmalines are also common and stones which are coloured pink to green are known as watermelon tourmaline. Tourmalines can also display cat's eye chatoyancy, which is caused by parallel fibres running through the stone.; Tourmaline is found in many countries including Madagascar, Brazil, USA, Burma, Sri Lanka, Botswana and