A large percentage of the world’s tumbled stone production is sold in spa, massage, alternative medicine and New Age markets. Here their uses include: “healing crystals,” “chakra stones,” “energy stones,” and “massage stones.”

In some types of alternative medicine, stones are placed on the body at points of discomfort or on “spiritual centers” known as “chakras.” Some people report relief from these treatments, although traditional medical research has not proven that any cure or healing occurs beyond a placebo effect. The treatments themselves are usually not harmful. However, some people use them instead of seeking genuine medical care as a serious medical condition progresses.