Tourmalines are found in virtually every color in nature. One of the distinctive features of tourmaline is that the same stone can have different colors depending on the light under which you look, in fact its name comes from touramalli, which means "stone of mixed colors." Tourmaline is said to be able to transform negative energy into positive and improve self-confidence.
Color: Colorless, pink, red, yellow, green, blue, violet, black and multicolored
Associated month: October
Moh's hardness: 7 to 7.5
Ethical origin: Brazil