In general, helps to relieve stress. Black tourmaline's particular function is to repel negative energy, whether from external or internal sources. It is a very good stone to carry when you're experiencing any kind of stress. Green tourmaline is believed to be a healer on all level. It is also believed to be particularly helpful for creativity and abundance.
Pink tourmaline helps to transform unconditional self-love into love for others.
Watermelon Tourmaline is a mixture of green and pink tourmaline, and blends the energies of these two stones, healing the heart of emotional wounds and enabling it to give love. Helps to make our desires clear to us, and assists us in expressing them to others who may be able to help us materialize them. Has a balancing and stabilizing effect. Helps us to discover the roots of illness.