Black Tourmaline TumblestoneChakraRootZodiacCapricornElementEarth Physically: Wonderful healing crystal to use as they bring relief from pain and boost the immune system.Emotionally: It's one of the most powerful and effective crystals for anxiety.Spiritually: Black Tourmaline will ground you quite quickly, so it is highly beneficial to keep a piece of this stone on you.Magickally: Protection, absorb negativity, grounding. Black Tourmaline is an excellent crystal for everyone because it's the bodyguard stone that provides protection and elimination of negative energy. Black Tourmaline works like a sponge, soaking up all the negative energy that surrounds it and transmitting it into positive energy. In addition these stones are strong EMF protection crystals that will purify the area where they are located. Every crystal purchased is cleansed before shipping and comes with information on the crystal free of charge  CRYSTAL SIZES:Small = 5mm - 10mmMedium = 10mm - 20mmLarge = 20mm - 30mmX-Large = 30mm - 40mm