Hobby Rock Tumbler
Turn rough rocks into beautiful polished gemstones with our high-quality rock tumblers. These powerful tumbling machines are perfect for beginners ...
View full detailsTurn rough rocks into beautiful polished gemstones with our high-quality rock tumblers. These powerful tumbling machines are perfect for beginners ...
View full detailsFind crystal treasure! Geology is downright exciting when you're breaking open rocks and finding crystal treasures! Geodes can form with a variety ...
View full detailsMix the crystal growing powder into water, add your seed rock (fluorite), and watch your glow-in-the-dark crystal grow before your eyes! This kit c...
View full detailsGrow an awesome purple crystal with the National Geographic Purple Crystal Growing Lab! Easy-to-follow instructions lead you through the crystal gr...
View full detailsHidden gemstones await in this National Geographic Starter Rock Tumbler Kit. The young geologist in your life will be fascinated by the process of ...
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