1. tourmaline is the handicraft name of tourmaline, and tourmaline is a kind of jewelry of tourmaline family. It is a borosilicate crystal, containing chemical elements such as aluminum, iron, magnesium, sodium, lithium, potassium and so on, showing a variety of colors.

2. The mineralogical name of tourmaline is tourmaline, and the English name is tourmaline, which comes from the word "Turmali" in ancient Sinhalese, meaning "mixed gem". In some historical documents of our country, it is called arsenic, tourmaline, bixia stone, broken evil gold and so on. Tourmaline crystal Tourmaline is a complex triangular columnar crystal, and there will be characteristic growth stripes on the surface of the crystal parallel to the extension direction of the columnar crystal. In cross section, it is a curved spherical triangle.