Like many gem families, Tourmalines are split into several groups. Most Tourmalines fall into the Elbaite group. Its name is derived from the small island of Elba, Italy, where the first gem was discovere in 1913.
All Elbaites are strongly pleochroic (different colours can be seen when viewing the gem from different angles) and its members include Rubellite which is Red, Achroite-colourless, Siberite-lilac to violet, Paraiba-neon blue to green and Indicolite-blue.
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