Rough Gemstone Refill Kit for Rock Tumbler by National Geographic by National Geographic
価格: ¥4,475
The raw gemstones and grit included in this kit are compatible with all rock tumblers including National Geographic, Discover with Dr.Cool, Lortone, Mill, Elenco, NSI and others.
Show off your best stones by wearing them.
- The ultimate variety with 0.5kg of raw gemstones
- 4 courses of premium polishing grit that will turn your stones into beautiful gemstones
- Jewellery fastenings for displaying your finished gemstones
Boys and girls will love comparing the nine types of jasper and adding these incredible specimens to their rock collection.
Younger children love collecting, counting, and naming these smoothed rocks (adult supervision required) while children 8 years and up enjoy creating their very own gemstones and learning about the different properties of the jasper.
National Geographic is a brand that parents trust.With a mission to inspire people to care about the planet, the 126-year-old National Geographic Society is one of the world's largest nonprofit scientific and educational organisations.National Geographic's net proceeds support vital exploration, conservation, research, and education programmes.
Science doesn't get any cooler than this.