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Discover the Beauty of Rocks
The Discovery #MINDBLOWN Rock Tumbler brings the wonders of geology and gemology right into your hands. With this motorized kit, you can transform ordinary rocks into beautiful polished gems. It’s an engaging, hands-on experience that combines education and fun, perfect for budding scientists and explorers.
Step-by-Step Rock Polishing
Using the rock tumbler is simple. Add rocks, grit, and water to the rubber barrel, secure the lid, and start tumbling. The machine does the hard work, gradually polishing your stones into smooth, shiny gems. The included tumbling guide provides tips and tricks, making it easy for beginners and enthusiasts alike to achieve impressive results.
A Complete Gem-Tumbling Kit
This kit includes everything you need to get started: 20 natural gemstones, four types of grit for each stage of polishing, and a durable storage case to keep your gems organized. The motorized machine is designed with a replaceable drive belt, ensuring lasting use for future rock-tumbling projects.
Educational and Entertaining
Ideal for kids ages 8 and up, this STEM toy promotes learning through play. It encourages an interest in science and the natural world while teaching patience and responsibility. Watch as raw stones transform into dazzling treasures, creating memories and building curiosity in young minds.
Product Features:
- Motorized tumbler machine
- Easy to follow tumbling guide
- 4 stages of grit for smooth, shiny results
- STEM educational toy certified
- Perfect for ages 8 and up
Package Includes:
- Rock Tumbler
- Rubber barrel
- Power adapter
- Replaceable drive belt
- 1 gem case
- 4 packets of grit: coarse, medium, fine, and polish
- 20 assorted gemstones
Unleash the natural beauty hidden within rocks! Add the Discovery #MINDBLOWN Rock Tumbler to your cart and start exploring the fascinating world of gemology today.
Mandy D
Reviewed in the United States on May 20, 2025
This was such a neat set that my kiddos really enjoyed. Was super easy to set up and use, had my 13 year old set it up and ran the rocks for my 5 year old. It is a bit loud and has to run for quite a while with that noise constantly going so definitely make sure you put it somewhere where it will not disturb. Size was small enough to be out of the way and seemed to be quality made. Functioned well and gave us such a neat end result. I would definitely recommend!
Jay Meraki
Reviewed in the United States on May 14, 2025
My daughter has been using this since Christmas. It's definitely noisy and messy, but that wasn't unexpected. It's a good mid-grade tumbler that will last a while with the periodic rock find. It's nice to have the different levels of coarseness for sanding, and the storage case is handy for when we put it away. It's built fine for its purposes and does exactly what it says. For the beginner in rock polishing, this is a solid kit.
SouthernMommma
Reviewed in the United States on May 13, 2025
My teen son wanted this so bad for his birthday. It works GREAT, let me start off by saying that. This thing is loud. Loud as in put it in a room, close the door and can hear it across the house. It only comes with enough products to run it with the rocks that came with it, and for me thats not worth the money because you have to rebuy everything to be able to use it more then once.
"Jocko"
Reviewed in the United States on May 10, 2025
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Jill DeMoss
Reviewed in the United States on December 28, 2024
Was very disappointed in this purchase! I researched and picked this one because it had a five star review, so I paid more for it thinking it was a better qualityand gave it to my grandson on Christmas Day and we got it all up and running and it lasted maybe a total of six hours, if that long and it quit! Not worth the money in my opinion at all!
Liz C.
Reviewed in the United States on December 16, 2024
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