The Cobb County Gem & Mineral Show is a three-day fun and educational event for the whole family! Free admission and parking! Hourly door prizes! Find amazing rocks, crystals, gemstones, minerals, and fossils from all over the world! Choose from a large selection of beautiful beads, unique jewelry, and jewelry-making supplies. They’ll have display cases by gem club members, lapidary demonstrations of gem and mineral polishing, grab bags, silent auctions, geode cracking, and mineral ID classes!