Quartz Crystals can be used to clear and activate the energy centers of the body, attuning well to the heart chakra and working very well at the third eye. It aids greatly in purifying the physical, mental and spiritual bodies. A healer of negativity associated with ones perspectives and judgments, it can be used to look at the inner negativity and stimulate positive thoughts. It helps one to redirect ones materialistic energies towards the Spiritual realm. It can produce a healing force field of negative ions while clearing positive ions from the air, and cancels the harmful effects of radiation/radioactivity. A single quartz crystal, carried on one or placed in ones environment will help maintain balance, energy and protection. Whether carried or placed somewhere, the 'force' of the crystal stays attuned to the one to whom it is connected.