At ROCK YOUR WORLD, rock enthusiasts of all ages can immerse themselves in the fascinating world of rocks, minerals, fossils and gemstones. This free, two-day (May 4-5) event will offer displays, demonstrations, artisan-made jewelry (over 25 vendors) and hands-on activities for the children. As part of the fun, future geologists and paleontologists can break open geodes, dig for fossils or start a rock collection. Mom can choose the perfect one-of-a-kind jewelry item for Mother's Day. ROCK YOUR WORLD is sponsored by the Tennessee Valley Rock and Mineral Society. Society members will be on hand to help identify your favorite rock or mineral.