Finely faceted tourmaline A 4 mm reportedly supports its wearer's vitality and energy. Its colour strongly resembles a watermelon, with a pink or red core followed by a green and sometimes white outer layer. It is said to connect its wearer with nature and help maintain a positive atmosphere in a room. According to legend, it is often associated with removing negative blocks in the mind. Each bead is one of a kind, so the size may vary slightly. Each bead is one of a kind, so the size may vary slightly. Read more about tourmaline in our article on tourmaline.