PRICE PER KG
Pieces per kilo: 50 to 60 u. aprox.
Size: de 25 a 35 mm.
Raw pieces of black Tourmaline from Brazil.
Belongs to the trigonal crystallization system and classified in the group of silicates with a very complex chemical formula where there can be many combinations between different elements.
Very popular in the collection world as well as in jewelery, where the fantastic sculptures are made from gem-quality specimens of an intense color.
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