Rock Tumbler - STEM Geology Kit

Turn rough stones into beautiful polished gems and discover the fascinating science of geology! The Thames & Kosmos Rock Tumbler lets young scientists explore erosion, weathering, and the rock cycle while transforming real rocks into smooth, shiny treasures. This easy-to-use rock tumbler includes authentic rock specimens, four stages of polishing grit, and jewelry settings so kids can create necklaces, rings, earrings, and keychains from their finished gems. The durable motor and leak-resistant rubber barrel make the tumbling process quieter and more reliable while the built-in timer allows experiments to run for up to seven days. With the included educational poster and guide, kids will learn how rocks form, how minerals differ, and how natural forces shape our planet. Perfect for curious kids who love science, collecting, crafting, and hands-on experimentation.

Availability verified during our latest store check. If the item isn't on the shelf when we get there, the order is cancelled and you are refunded in full.