The Smithsonian Rock Tumbler is much more than a rock polisher. It can change rough stones into beautiful high-luster gemstones. Kids will make exciting jewelry with the settings included. Contains tumbling machine with heavy-duty motor, rough semiprecious stones such as amethyst, jasper and agate-grit, polish, jewelry settings, glue and instruction manual. Tumbler Refill Kit includes additiona... More at Young Explorers.
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