Blue tourmaline: a general term for light blue to dark blue tourmalines. Blue tourmaline is the most valuable color in tourmaline because of its rarity.
Red tourmaline: a generic term for pink to red tourmaline. Red is the best tourmaline, with purple and rose. It is called Ruby, which is also called "Baby Face" in China. But in nature, brown, reddish brown, crimson and so on are produced more, and the color tone changes greatly. At the same time, the specific gravity of tourmaline will change with the color; Deep red has a higher specific gravity than pink. Green tourmaline: Green and yellow tourmalines are the most common among all tourmaline color variants, so their value is not as good as blue and red tourmalines.
Brazil is the best tourmaline in the world. The origin of Brazilian tourmaline is mainly concentrated in the state of Grasse in Minners. Tourmaline produced here is colorful. Up to now, more than 20 colors have been mined, including almost all the colors of tourmaline.