Many collectors of crystals and gemstones particulary enjoy tumblestones.

Most crystals, gemstones, and other natural rocks are available in the form of polished smooth "tumblestones". These vary in size and are available in convenient sizes to keep in a small purse, bag, or cashbox, to fill crackers, and/or for use as small gifts or keepsakes. Some tumblestones are used for crystal healingh, and may be of interest to mineral collectors for their geological features.