Includes 2.26 kilograms of high-quality, assorted rocks for tumbling along with everything you need to make them shine and create wearable jewellery!

Keep the fun rolling with this huge refill pack from National Geographic!

The National Geographic World’s Greatest Rock Tumbler Refill Kit includes an astounding 2.26 kg of unpolished rocks and gemstones, along with everything you need to make the stones shine! This kit includes: 906 g of our Gemstone mix and 453 g each of our Agate, Madagascar, and Jasper mixes; 5 jewellery settings, 20 packets of rock polishing grit, and detailed instructions and Learning Guide.

This is the ultimate rock tumbler refill kit for tumbling enthusiasts! You receive an incredible array of stones including agates and jasper. The gemstone mix includes aventurine, amethyst, sodalite, and tiger’s eye, and the Madagascar mix contains rose quartz, labradorite, and indigo gabbro. This truly is a one-stop refill kit, packed with a wide-ranging variety of rocks and gemstones! Plus, the 20 polishing grit packets allow for five complete rock polishing cycles with any rock tumbler.

A handy storage pouch is also included so you can keep all your favourite specimens together in one place, and the detailed Learning Guide provides tumbling instructions along with fascinating facts about all the stones in the kit.

We make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world's largest nonprofit scientific and educational organizations.