Quartz is valued for its piezoelectric and pyroelectric properties, by which it can transform mechanical pressure or heat into electromagnetic energy. Its ability to focus, amplify, store and transform energy is used throughout technology in ultrasound devices such as: watches, microphones, radio transmitters and receivers, memory chips in computers and other electronic circuitry. Clear Quartz is also a master healer crystal and may be used for any condition. It is thought to stimulate the immune and circulatory systems, bringing the body into balance. It has been used to treat migraine headaches, vertigo, dizziness / motion sickness, and is believed to assist with metabolism, exhaustion, and weight loss.