Discovery #MINDBLOWN 18-Piece Rock Tumbler Set with Polishing Machine, Rocks & Jewelry Accessories

Discovery #MINDBLOWN 18-Piece Rock Tumbler Set with Polishing Machine, Rocks & Jewelry Accessories
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Model: 1015194
(42)
2 stores
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Product Details

Beautiful gemstones are polished, smoothed and shaped by their existence in nature and being tumbled through rivers-a process that usually takes thousands of years! Now you can mimic that same natural event with the Discovery #MINDBLOWN Rock Tumbler Kit. The tumbling motion, gritty sand and water are the only things Mother Nature uses to polish natural quartz and other stones. This kit takes those things and adds electrical power so speed up that natural process. Just add the stones, rocks, and the gritty sand to the tumbler and let it do all the work for you. Within days you will have smooth and polished gemstones that you can use for making accessories. Children ages 10 and up will enjoy being a scientist with this kit! This set from Discovery #MINDBLOWN uses natural science and geology concepts to bring you a fun and educational toy!

KIDS ROCK TUMBLER KIT: Ever wonder how gemstones get naturally polished as they tumble through a river? See how rocks, stones & gems get smooth from being exposed to running water & gritty sand. GET STARTED WITH EVERYTHING YOU NEED: Everything comes packed in the box, including the tumbler, rocks, grit, accessories, & power cord. Just add water! Note: All gemstones are natural & unique. DESTINATION DISCOVERY: Take reality to another level with our fun & educational toys! You can explore the universe & fly through space, roam the desert with animals, run from dinosaurs & much more! EXPLORE OUR TOYS: We have toys for boys & girls of all ages: board games & puzzles, plush toys, easels, science sets & STEM building kits, remote-control cars, boats & more! PLAY & LEARN: At the intersection of inspiration, curiosity, & STEM-based edutainment, our toys help spark the imagination & promote the development of science, technology, engineering & math skills.

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Last Updated: 2025-10-17 08:52:02

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Product Specifications

Technical Details

Manufacturer -
Brand Discovery #MINDBLOWN
Item model number 1015194
Color Gray
Weight -
Height -
Depth -

Additional Product Information

Product Id 2790397
User Reviews and Ratings
4.3 (42 ratings)
4.3 out of 5 stars
UPC 843479112467

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Discovery #MINDBLOWN 18-Piece Rock Tumbler Set with Polishing Machine, Rocks & Jewelry Accessories
Reviews: 42
app.ratings: (42)
Price:
$55 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(5)
Reviewed in the USA on May 20, 2021

[This review was collected as part of a promotion.] My wife is a science teacher and she loves showing her students the process of tumbling stones. She has gone through several other tumblers until this one! This product has stood up to six classes so far and shows no signs of slowing down! I highly recommend this tumbler!

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 17, 2021

[This review was collected as part of a promotion.] My 8 year old has been very into rocks, so we were excited to try this. While he's having a hard time learning that it's a long process and not instant results, I've been happy with it so far. It's not as noisy as the one I remember when I was younger, but it is tumbling rocks so it can't be quiet. We just set it up on our back porch. We're excited to get to the last stage and use the rest of the kit to make our stones wearable.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 12, 2021

[This review was collected as part of a promotion.] I got this for my younger sister to have and she said it actually works. It made the rocks she collected from the beach during the summer look much nicer. As long as you have some patience, it works really well.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 02, 2021

[This review was collected as part of a promotion.] As far back as I can remember I've always been fascinated by rocks. A rock hound so say. One of the those early memories of my dad and I using a kit just like this.  And for the first time I was the one on the other end showing my nephew. Having him pick from the bag. Telling him about the SIC powder used and how it's from outer space. This is a great kit with a tumbler that can be used again n again.

Anonymous • Review provider: walmart.com
(2)
Reviewed in the USA on May 01, 2021

[This review was collected as part of a promotion.] I was so excited to try this rock tumbler out because I have been collecting rocks over the past few months and wanted to see them all cleaned up and polished. However, I was extremely disappointed that after the second phase of tumbling, the rubber gasket that helps seal the lid to the canister seemed to be stretched and would not properly fit in the lid. No matter what I tried, which included making absolutely sure no grit was in the lid grooves or on the lip of the canister, I could not get the seal to work and water kept flying everywhere when I tried to start the tumbler. I was unable to see the rocks through the whole tumbling process. Just in case this was a fluke or just a random bad gasket, here are my thoughts otherwise: The rocks that come with the kit are really beautiful. I loved seeing how they went from blocky pieces of rock to rounded, colorful stones. The colors I had were blue, green, and yellow and they were very vibrant! Listen when the instructions tell you to find a place out of the way to put the tumbler because it can be very loud. Especially if you have timid cats that might refuse to go by the machine to get to the litter box! Stick the tumbler in a closet if you can. Just know that this experiment requires lots of patience- all together the whole tumbling process could take a month, with very little hands-on time in there. When emptying between phases it would be best if you could go outside to dump and clean the canister and rocks because you don't want any of the grit going down your drains. I feel like it's a shame to have to rate the tumbler so poorly, but it is a problem if there is a malfunction and the whole experiment cannot be finished. I hope everyone else has good luck with it and are able to get beautifully polished stones out of it.

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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