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Tourmaline

Tourmaline is a crystalline silicate mineral group in which boron is compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium.

Colors It Comes In - Black, Green, Pink, Blue, Red, White, Yellow, Purple, Brown, Orange, Grey

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Fracture Pattern - uneven, small, conchoidal, or scattered

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Shape - Six-member ring cyclosilicate having a trigonal crystal system. It occurs as long, slender to thick prismatic and columnar crystals that are usually triangular in cross-section, often with curved striated faces. Euhedral ranging from stubby columnar crystals to acicular crystals.

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Luster - Vitreous to subresinous

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Texture - smooth, plastic like

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Where It Can Be Found - Tourmaline can be found all over the world, but most is mined in Brazil and Africa. It can also be sourced in Afghanistan and nearby regions, and there are even some scattered mines in the U.S. In Africa it is mined in Mozambique, Zambia, Namibia, Madagascar and Nigeria.

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Hardness On The Mohs Scale - 7 To 7.5 Out Of 10

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