Tourmaline

Complex borosilicate

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Tourmaline is a group of complex borosilicate minerals famous for their wide range of colors. Watermelon tourmaline shows pink centers with green rims. The most common variety, schorl (black), accounts for 95% of all tourmaline.

Sistema Cristalino Trigonal
Clase Mineral 09 Silicates
Dureza Mohs 7.0-7.5
Gravedad Específica 2.82-3.32
Color Black, green, pink, blue, watermelon
Brillo Vitreous
Raya Colorless
Exfoliación None
Fractura Conchoidal to uneven
Transparencia Transparent
Hábito Cristalino Prismatic with triangular cross-section

Dureza Mohs

Mohs Hardness: 7,0 – 7,5
1 Soft10 Hard

Sistema Cristalino

Trigonal

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Frequently Asked Questions

What is the hardness of Tourmaline?
Tourmaline has a Mohs hardness of 7.0-7.5.
What crystal system does Tourmaline belong to?
Tourmaline crystallizes in the Trigonal crystal system.
What color is Tourmaline?
Tourmaline is typically Black, green, pink, blue, watermelon.
What type of luster does Tourmaline have?
Tourmaline exhibits a Vitreous luster.
What is the chemical formula of Tourmaline?
The chemical formula of Tourmaline is Complex borosilicate.