QUARTZ  crystals can be used to amplify both energy and thoughts. They can assist in the creation of power and can provide clarity in thinking. They are said to bring the energy of the stars into the soul. Quartz crystal is the connection between the physical dimension and the realm of the mind. It is used to communicate with minerals, plants, animals and intelligent forces outside of the physical dimension. Its natural tendency is for harmony and it is recognized as a "stone of power". It can also transform thoughts into sound, producing the vibration associated with the thought. . It provides for purification of the physical, mental and spiritual bodies. It is also a healer of negativity associated with ones perspectives and judgement. "Clear" quartz has been used extensively in meditation, spiritual development and healing.