Quartz crystal is a power stone that's prized as a healing stone. It is known as the most powerful healing stone of the mineral kingdom, able to work on any condition. It has been called the "Universal Crystal" because of its many uses and is beneficial for manifesting, healing, meditation, protection and channeling. Due to its ability to balance, quartz is excellent for harmonizing and stabilizing one's environment and is helpful in romantic relationships. It is also believed to improve mental and physical energy, stamina and physical strength.