The National Geographic Rock Tumbler. Looking like an alien spacecraft, with a swivel head. If polishing rocks is your game, then this is a gizmoid you may need. $32.95.
Our rock tumbler polishes small stones to a smooth gleam over a period of a week that uncovers their incredible hidden patterns, colours, and structures. Used with the included half pound of gemstone rocks, or rocks that children collect, the results encourage geologic study and create beautiful objects to behold. The Rock Tumbler kit Includes two bags each of coarse, fine, polishing, and finishing powders.
