7.15ct Rectangular Cut Tourmaline 25x6.6mm Zeiss Loupe orange and purple by chromium

orange and purple by chromium and iron and dark blues by traces of iron and cobalt

18 x 460 x 14

09 x 360 x 10 T- End

angle finder and level in one for horizontal and vertical measurement

Internal Compartment Sizes: 35 x 35 x Depth 36mm

7.15ct Rectangular Cut Tourmaline 25x6.6mm Zeiss Loupe orange and purple by chromiumTourmalines 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