Tourmaline is the birthstone for the month of October. Tourmalines are red and green, range from blue to yellow. Watermelon tourmaline heals the emotions and balances sexual energies. Pink tourmaline reduces fear, protects the aura against negativity, and induces peaceful sleep. Green tourmaline possesses the power to attract money and success. Black tourmaline deflects negativity, dispels fears, and balances the aura. Yellow tourmaline stimulates the brain, strengthens the psychic powers, and increases both wisdom and understanding. Its excellent availability and unique splendor of colors make it one of the most popular gemstones.