Tourmaline has been a gemstone of mystery and power from the ancient to the modern age. This gemstone goes beyond mere ornamentation to offer healing properties and functional uses in our day-to-day lives. Tourmaline, or schorl, is on many "essential stones" lists for its metaphysical properties. You may have heard of the black tourmaline crystal. But there are also varieties like pink tourmaline and watermelon tourmaline! So, what is tourmaline, and what is black tourmaline