Smokey Quartz can be used to calm and center the emotional body, to relax the nervous system in case of stress or negative emotions. It can also be used to ward off negative energy but these UV reactive Smokeys with Hyalite Opal from Portugal take things to another level! We feel these crystals have an affinity with the astral realms and serve to protect from entities and open our inner vision to better perceive that which is beyond the physical world.