Tourmaline is not only black but exists in so many different colors. Green, blue, red, white, bicolor...Black Tourmaline is the best known and stands for protection, keeps negativity away, grounding, stabilizing and calming. Green Tourmaline opens the mind, increases vitality, gratefulness and joy. Red increases imagination, dynamic, willpower and sexuality. Bicolor liberates emotions, let the enery flow, transmits beauty and dignity.