You will not be allowed to compare more than 4 products at a time
View compareFrequently Asked Questions
- Q: What is the capacity of the NATIONAL GEOGRAPHIC Rock Tumbler Kit? A: The NATIONAL GEOGRAPHIC Rock Tumbler Kit features an extra-large capacity barrel that can hold up to 3 lbs. of rough rocks, making it suitable for both beginners and experienced rock tumblers.
- Q: How do I use the rock tumbler, and what is the tumbling process like? A: Using the rock tumbler is straightforward. Simply add your raw rocks, select the desired speed and time using the 3-speed motor and 9-day timer, and let it run. The durable design ensures a consistent tumbling process that results in beautifully polished gemstones.
- Q: What materials are included in the rock tumbling kit? A: The kit includes 3 lbs. of raw rocks, which feature 9 different types of gemstones, along with 5 jewelry fastenings, polishing grit, a strainer, and GemFoam for achieving a dazzling shine on your polished stones.
- Q: How does the GemFoam enhance the polishing results? A: GemFoam is a reusable polishing material that, when added to the barrel after the final tumbling stage, helps achieve incredible shine on the gemstones. This unique feature sets this rock tumbler apart from others on the market.
- Q: Is the NATIONAL GEOGRAPHIC Rock Tumbler suitable for children? A: Yes, this rock tumbler is designed for both adults and kids, making it a great educational toy that introduces children to the science of geology and the fun of creating their own polished gemstones.

