Tourmalines are found in many countries. However the major deposits are available in Brazil, Sri Lanka and in some African Countries. Findings of small deposits have been made in Kenya, Tanzania, Mozambique, Madagascar, Pakistan , Nigeria, Zimbabwe. Though there are penalty of Tourmaline available in the market but good quality of tourmaline remains seldom in the markets that is due to its differences in colours of every stone.

Tourmalines are mixed crystals of aluminum boron silicate which is available in different composition at the same time this makes this mineral group fairly complex.Crystals of one colours are very seldom to find.The color in tourmaline is due to the presence of metal ions (Fe, Mn, Cr, V, Ti and Cu) in its crystal structure. Not only this but at the same time the angel from which you look at the stone the colour may vary again (so called dichoroism). Tourmalines have a good hardness of 7 to 7.5 on the Mohs scale.According the there appearance the Tourmalines has been given different name like the intense red is known as a 'rubellite'. Some stones in the pink shades are also called as pink tourmaline. Green Tourmaline are known as 'verdelite' in the trade. Green ones are called 'chrome tourmaline'. The most famous among the tourmaline stones is the 'Paraiba tourmaline', which has intensive blue to blue-green and was discovered rather lately in comparison to other verities of tourmaline stones.Tourmalines of yellow colour are known as 'canary tourmalines' in the trade. So many shades of the tourmaline stones makes it a truly rainbow colour stone. Tourmaline with different colours is known as bicolour or multicolored stone. Tourmaline also have a quality of electrically charged when they are heated and then allowed to cool – during this process the get charged negatively at one end and positively at another end.Tourmaline also has the quality to attract ashes & dust. In the olden time this stone was also called therefore as ash catcher and is still being used in Europe to clean smoking pipes.