Its name means "stone of many colors". Tourmalines are classified into several varieties according to their color: achroite, rubellite, dravite, verdelite, indiglote, siberite, watermelon ...
Monochrome tourmalines are rather rare and often have a gradation of color. The most significant deposits are in Brazil (Minas Gerais, Paraiba).
Other deposits are found in many places including Afghanistan, Australia, Burma, India, Madagascar, Mozambique...
Pink, bright red and green are the most sought-after colours, particularly the blue-green colour known as Paraiba Tourmaline.
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