Healing Power of Amethyst Crystals. If you need to release stress by relaxing your muscles and enjoying soothing Far Infrared Ray heat, simply lying on the BioMat promotes a feeling of well-being for a healthier mind and body. The core of the Richway BioMat technology is a combination of far infrared rays, negative ion and the conductive properties of amethyst channels. It’s a safe and natural way to own the ability to enjoy life for years to come with FDA approved temporary relief from minor spasms, minor sprains, strains, and joint pain associated with arthritis, minor muscle pain and more.