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5 ratti Tourmaline – Sri Lanka

6,389.00
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7 ratti Tourmaline – Sri Lanka

7,522.00
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6 ratti Tourmaline – Sri Lanka

6,955.00

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Description

Tourmaline is a one of the world’s popular gemstone. It is named of a large group of Boron Silicate minerals. Tourmaline has a Mohs hardness of 7 to 7.5 and that hardness makes its durable sediment granule. It also includes a wide variety of different forms. Tourmaline has a prismatic crystal habit and often has obvious striations that parallel the long axis of crystal. It has a complex chemical composition.

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