Rock Tumbler Hobby Series

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Imagine taking dull, ordinary rocks and magically transforming them into sparkling gems…now you can!, With the Hobby Rock Tumbler from Discover with

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Hobby Series Rock Tumbler

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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings and Detailed Learning Guide

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Imagine taking dull, ordinary rocks and magically transforming them into sparkling gems…now you can! With the Hobby Rock Tumbler from Discover with

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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Learning Guide, Great Stem Science Kit –