NATIONAL GEOGRAPHIC Rock Tumbler Refill – 453g Mix of Rough Gemstone Rocks for Rock Polishers, Includes 5 Jewellery Fastenings and Rock Polishing Grit, Works with All Rock Tumblers
Details
- SizeMittel
- BrandBlue Marble
- Themegeology
- Age range (description)8 years and up
- MaterialGemstone
Description
💎 Turn rough rocks into dazzling treasures—because your creativity deserves the best!
- DIY JEWELRY KIT - Includes necklace, earrings, keychain, and ring fastenings to showcase your polished gems.
- EDUCATIONAL ENGAGING - Full-color guide enriches your knowledge with fascinating geology facts and STEM skills.
- UNIVERSAL COMPATIBILITY - Works seamlessly with all rock tumblers—upgrade your hobby without limits.
- PRECISION POLISHING SYSTEM - Four-step grit process ensures flawless, museum-quality shine every time.
- DIVERSE GEMSTONE COLLECTION - Nine unique stones including Amethyst & Tiger’s Eye for endless creative potential.
The NATIONAL GEOGRAPHIC Rock Tumbler Refill offers 453 grams of nine distinct rough gemstones, combined with four grades of polishing grit and five jewelry fastenings. Designed for ages 8+, it includes an educational guide to enhance STEM learning and works with all rock tumblers, enabling users to transform raw stones into polished gems and custom jewelry.
Specifications
| Product Dimensions | 7.62 x 7.62 x 20.32 cm; 635.03 g |
| Manufacturer recommended age | 8 years and up |
| Item model number | NGGEMREFILL |
| Educational Objective(s) | Geology, Patterning, Exploratory Skills, Observation Reasoning Skills |
| Language: | English |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries included? | No |
| Material Type(s) | Gemstone |
| Remote Control Included? | No |
| Colour | Red |
| Release date | 14 Jun. 2016 |
| ASIN | B017L46G9G |
Reviews
J**S
A Really Interesting Hobby
Very well produced and well packed. Comprehensive kit, with easy to follow instructions, making it easy to use and set up. One thing I didn't realise was it would take so long to produce the finished items. Each stage, there are five, takes several days to run. So don't expect rapid results. It is worth the wait for the drum to stop turning, seeing the magical change in the stones is wonderful. Great piece of kit and glad I bought it. Grandchildren love it.
L**S
Fab
Perfect for my 11 year old lad who loves rocks
L**B
A useful addition to the rock tumbler, especially for beginners.
Bought as an addition to the rock tumbler so that grandson had plenty to go at. It's a useful addition to prevent you having to seek out replacement supplies.
R**T
Satisfying.
Easy to set up. Good selection of stones supplied. After 5 days a good enough finish to delight 7 year old grandson. As warned it is very noisy so better in a garage or she'd.
S**R
A professional looking kit.
I bought the rock tumbler from you as a Xmas present for my grandson, looks good, but obviously not used yet. I then purchased the refill pack to give him a good start. I think he will love it.
J**Y
A must for anyone learning stone tumbling
great introductory kit I am almost finished polishing my first batch and the stones look amazing
M**Y
Three Stars
Thanks again
S**.
absolutely top notch
superb level of customer service & commitment to provide customers satisfaction. these gemstone tumblestone kits are so impressive & are brilliant value for money. well packaged, dispatched immediately, arrived within 2 days. thrilled with the quality of the stones, so much better than the ones that came with my very expensive 3lb tumbler. very highly recommended product and vendor. 5 stars!
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