Watermelon Tourmaline has different colors working through it. There is a pink which represents the meeting situation, the green which is the protection value and possibly the clear and or black aspects which are the seeds and the bitterness it is good for an altar a centerpiece particularly as it clears earth energies for when you are using it in hoodoo or voodoo or any of the earth magic practices. It's naturally protective. Its element is earth and its number is 6.