Crystals are believed to have energetic properties. Different crystals are thought to have different properties and are used for different purposes. For example, amethyst is often used for calming and spiritual purposes, while citrine is believed to bring prosperity and abundance. Tumble stones are often used in crystal healing practices, where they are placed on or near the body to help balance energy and promote healing. They can also be carried or worn as a talisman, or placed in a room to help create a peaceful, harmonious atmosphere.