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Blue Marble

National Geographic Rock Tumbler Refill Kit – 3 lbs. of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit and Jewelry Accessories

  • Based on 2,327 reviews
Condition: New
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$36.99 Why this price?
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Oct 28
Order within 14 hours and 22 minutes
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Style: Gemstone Mix


Features

  • Gemstones of nine varieties! Tigers Eye, Amethyst, Aventurine, Rose Quartz, Red Jasper, Agate, Sodalite, Dalmatian Jasper, Black Jasper. (3lb in total)
  • Four grades of grit. Coarse, Medium, Fine, Polish. Transform your stones from rough rocks to dazzling gemstones!
  • Jewelry fastenings. 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring. Create custom jewelry from your newly polished gemstones!
  • Learning guide. Our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts
  • AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!

Product Dimensions: 5.37 x 5.31 x 5.44 inches


Item Weight: 2.99 pounds


Item model number: NGGEMREFILLMEGA


Manufacturer recommended age: 8 years and up


Is Discontinued By Manufacturer: No


Release date: September 10, 2018


Language: English


Manufacturer: JMW Sales, Inc.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • 👍🏼
Style: Gemstone Mix
Son Loved it! great product, with great quality. Cool hobby to have
Reviewed in the United States on August 16, 2025 by Brianna Mattingly
    • best gift
Style: Gemstone Mix
best gift for my kids and my husband
Reviewed in the United States on August 9, 2025 by Anna O
    • Great for Polishing Rocks!
Style: Gemstone Mix
Grandson is enjoying working with his rock tumbler and his extended Rick collection! Polished rocks very nicely and gets good results. Takes time but does a nice job!
Reviewed in the United States on July 20, 2025 by Rick
    • Great project for my grandkids
Style: Gemstone Mix
Very good value My grandson's really liked it we had a lot of fun and still are enjoying it. The age all depends on how engaged you are with the child you should supervise him with these anyway If a 2-year-old can really enjoy it then I think most children will as well.
Reviewed in the United States on October 11, 2024 by Jack Mayes
    • rock
Style: Madagascar Mix
my grand kids loves it.
Reviewed in the United States on August 20, 2025 by Daphine Adams
    • Good size and colors
Style: Gemstone Mix
A lot of colors
Reviewed in the United States on February 7, 2025 by MDB
    • Love this set!
Style: Gemstone Mix
Got a rock tumbler for Christmas and I love it! Had to get more grit and rocks and used the same brand as the tumbler and the rocks it comes with are really pretty and they turn out so well! Comes with instructions so it’s easy to follow. This makes a great gift for rock lovers.
Reviewed in the United States on August 8, 2022 by Samantha Burt
    • Delivered on time
Style: Gemstone Mix
Arrived on time and in great condition
Reviewed in the United States on January 8, 2025 by Amazon Customer

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