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$111.85
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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rough Gemstones, 4 Polishing Grits, Jewellery Fastenings, Great STEM Science Kit for Geology Enthusiasts

4.4 out of 5 stars 14,347 ratings

Price: $111.85
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Style Name: Hobby Kit

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  • CREATE YOUR OWN GEMSTONES - Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
  • A TUMBLER THAT'S MADE TO LAST – Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. Makes an excellent STEM gift or activity for girls and boys!
  • A COMPLETE HOBBY TUMBLING KIT - This kit has everything you need to create polished gemstones. You get the tumbler, four polishing grits, a sifter, nine types of real rough gemstones, plus a detailed full-color learning guide where you’ll learn interesting facts about each of the included gemstones.
  • EASY TO USE – Simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, so you can set it and forget it. This is a great gift for kids!
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

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Style Name:Hobby Kit

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Frequently bought together

  • NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rough Gemstones, 4 Polishing Grits, Jewellery Fastenings, Great STEM Science Kit
  • +
  • NATIONAL GEOGRAPHIC Rock Tumbler Refill – 2268g Mix of Rocks and Gemstones for Rock Tumblers, Includes Agate, Jasper, Petrifi
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  • NATIONAL GEOGRAPHIC Break Open 10 Premium Geodes – Includes Goggles, Detailed Learning Guide and 2 Display Stands - Great STE
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Product description

Style Name:Hobby Kit

Great way to start a rock collection!
Learn about the exciting hobby of rock tumbling with National Geographic. This set includes all the accessories you’ll need to start polishing dazzling gems. Rock tumbling is tons of fun and a great way to start an extraordinary rock collection. Kids can use the included jewelry fastening to create beautiful homemade jewelry!

Contents and Features:
• High-quality tumbling machine with powerful motor that will last for years
• Automatic shutoff timer so you can set it and forget it
• Noise reducing leak-proof barrel with stainless steel lid
• Half pound of gemstones from around the world (9 types) and four grades of grit
• Jewelry fastenings so you can create your own unique jewelry
• Full-color information guide with cool facts about each of the gemstones included
• Easy-to-follow rock tumbling instructions
• 2-year manufacturer warranty

Rock tumbling is a fun activity for children of all ages and promotes an interest in geology and science. Introduce your kid to science the fun way! Join National Geographic as we inspire future generations by showing them the wonders of the natural world.

National Geographic Toys is proud to provide a 100% satisfaction guarantee with all our products so that you can buy with confidence.

About the National Geographic Society
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 organizations.

National Geographic’s net proceeds support vital exploration, conservation, research, and education programs.


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Safety Information:

choking hazard - small parts - not suitable for children under 3 years


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4.4 out of 5 stars
4.4 out of 5
14,347 global ratings
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Top reviews from Australia

Reviewed in Australia on 30 August 2020
Style Name: Hobby KitVerified Purchase
3 people found this helpful
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Reviewed in Australia on 23 August 2021
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One person found this helpful
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Reviewed in Australia on 3 May 2021
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One person found this helpful
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Reviewed in Australia on 2 October 2021
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Reviewed in Australia on 10 October 2020
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2 people found this helpful
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Reviewed in Australia on 6 January 2021
Style Name: Hobby KitVerified Purchase
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4.0 out of 5 stars Tumbler must have solid surface
By Deb P. on 6 January 2021
This little tumbler has been running for days tumbling. It took us three tries to find a place where it would keep running. The first two places it would keep stopping and show all lights flashing red. As photos show, there is stuff coming out of it, not sure what’s happening. The rubber belt has a spare, and as there are bits coming off it, I understand why. I am new to this hobby, but for the price, and if it keeps going.. I think it is a reasonable product. A lot of fun looking for rocks.
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Reviewed in Australia on 27 January 2021
Style Name: Hobby KitVerified Purchase
Reviewed in Australia on 16 July 2020
Style Name: Hobby KitVerified Purchase

Top reviews from other countries

Kelly
5.0 out of 5 stars Absolutely love this!
Reviewed in the United States on 6 June 2018
Style Name: Hobby KitVerified Purchase
949 people found this helpful
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Christina
5.0 out of 5 stars Great Rock Tumbler
Reviewed in Canada on 2 May 2017
Style Name: Hobby KitVerified Purchase
123 people found this helpful
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Ocean Blue
5.0 out of 5 stars Great Tumbler for Faux Sea Glass for Crafting !!!
Reviewed in the United States on 15 August 2018
Style Name: Hobby KitVerified Purchase
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5.0 out of 5 stars Great Tumbler for Faux Sea Glass for Crafting !!!
Reviewed in the United States on 15 August 2018
Great tumbler for making faux sea glass !!! I bought this solely for the purpose of making "sea glass". It's very quiet due to the rubber cylinder. I use it in a large garden shed where it is drowned out by far by the natural/ambient sounds like spring peepers, crickets, cicadas, wind, rain, rustling leaves, etc. It handles a fairly large amount of glass at one time. The pictures show "before" & "after" of one load of glass... I have my own."formula" for what quantities I use of everything. It only takes 24 hours to make sea glass which looks identical to that which I collect at the beach (one of my favorite things to do). I use beach sand which is available in unlimited supplies. I break colorful glass from wine bottles, thrift shop finds, $1 glassware from a Dollar Store, etc... If your kids get bored waiting a month for rocks to tumble - try a batch of sea glass which is ready in 24 hrs. Just DO NOT let them break the glass or handle broken glass. Also, moms & dads - always wear eye protection when breaking glass (even wrapped in a towel) & use pliers to pick up broken pieces rather than using your fingers !!! Let your kids find colorful glass items at yard sales, flea markets, dollar stores, etc. & ALWAYS take before & after pics of each batch - see my pics - to give them a comparison & the satisfaction of seeing such a transformation take place !!! Finally, NEVER misrepresent tumbled glass as being actual REAL sea glass... use it in mosaics, jewelry & other crafts but always disclose that it is tumbled glass !!!
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715 people found this helpful
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Joe W Shum
3.0 out of 5 stars Don't expect you can get as picture shown.
Reviewed in Canada on 28 April 2019
Style Name: Hobby KitVerified Purchase
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3.0 out of 5 stars Don't expect you can get as picture shown.
Reviewed in Canada on 28 April 2019
Pros:
1) Smoothen rocks without much work.

2)Educational

Cons:
1) Cannot be polished to high shine.

2) Burnishing with soap and apply mineral oil still cannot acheive shininess as shown in picture.

Overall, it's not bad to smoothen up the rocks then cheat it by applying urethane.
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33 people found this helpful
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B. Diaz
5.0 out of 5 stars Prefect for our 7-year-old
Reviewed in the United States on 2 November 2016
Style Name: Hobby KitVerified Purchase
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5.0 out of 5 stars Prefect for our 7-year-old
Reviewed in the United States on 2 November 2016
**updated review below--- we got shiny rocks!**

We bought this for our son as a 7th birthday gift. It's the perfect mid-range rock tumbler! It's sturdy and doesn't seem like it will break. It's been running now for over 2 weeks. It's definitely not silent, but with its rubber barrel, I suspect it's tougher and quieter than one with a plastic barrel. We keep it in the basement, but can see it'd be annoying if it was somewhere in the house. It has a handy feature where you can set it for up to 7 days and it'll tell you how many days are left- great for a kid! It includes a nice little instruction manual with information about the history of rock tumbling and description of the rocks included. It's a nice, reasonably-priced kit that includes everything you need to start tumbling rocks right away!

Update: now that we've completed a batch, I figured I'd add some info. We still think it's a nice kit! The little sieve that comes with the kit is very handy! Our final stones were smooth and lovely. However, they weren't really shiny. After some reading, we learned that there is a bit of an art to this and we need to be a little more meticulous in the cleaning of the tumbler between grits. Overall, though, our 7-year-old is quite pleased with the kit. We bought the jasper set and will try that next!

Update #2-- SHINY ROCKS!
We did a few batches and couldn't get shiny rocks and we lost interest. My kiddo is now almost 9 but just started becoming interested in geology a lot more. We decided to try again. After reading some about it, I decided to try a better brand of grit and IT WORKED! We bought Rock Tumbler Grit for 3 Pound Tumbler
by Professional Grade Rock Polishing Grit
And followed the instructions **carefully,** making sure to clean the tumbler tub very meticulously after each tumble. We also purchased tumbling pellets (Rock Tumbler "Sinking" Plastic Pellets / Beads Used For Final Polishing & Burnishing Stages) for the final two stages. The new grit had an additional stage which made all the difference. The jade set came out mostly lovely and shiny. They were not all consistently shiny, but I see promise! I added a picture using the flash to show off the polish. We're going to try the nee grit with a different set of stones now.
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1,419 people found this helpful
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