Once proposed to be the national gemstone of the United States, tourmaline is found all over the world and in a variety of colours. Tourmaline is the most colourful of all gemstones because, according to an ancient Egyptian legend, it passed through a rainbow on its journey to Earth and brought all of the colours of the rainbow with it. Tourmaline is a mineral group comprised of multiple species of complex borosilicates.

Tourmaline

Once proposed to be the national gemstone of the United States, tourmaline is found all over the world and in a variety of colours. Tourmaline is the most colourful of all gemstones because, according to an ancient Egyptian legend, it passed through a rainbow on its journey to Earth and brought all of the colours of the rainbow with it. Tourmaline is a mineral group comprised of multiple species of complex borosilicates.

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