Shop online for Crystal Quartz Worry Stone today at low price from Natural Agate. 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. Quartz can balance and revitalize the physical, mental, emotional and spiritual planes. Cleanse and enhance the organs and subtle bodies. Quartz can be a catalyst, facilitating a deep soul cleansing, connecting the physical dimension with the mind. Worry stones (palm stones, thumb stones) are smooth, polished gemstones, usually in the shape of an oval with a thumb-sized indentation, used for relaxation or anxiety relief. They are used by holding the stone between the index finger and thumb and gently moving one`s thumb back and forth across the stone.