Crystals have been used over the centuries for a multitude of purposes - from healing to protection to decoration to technology. Quartz crystals are commonly used in watches, communication systems, medical electronics as well as computers and many other applications.

Crystal healing is a New Age belief that crystals have energies and properties that are able to heal physical and emotional problems by placing semi-precious stones on specific points of the body, being swept over the body or placing them near the patient to bring relief of the condition.