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NATIONAL GEOGRAPHIC Rock Refill – Mega Madagascar Pack, 3 lb of Gemstones Including Rose Quartz, Jasper, Labradorite, & More, Tumbler Grit & Jewelry Settings

  • Based on 2,327 reviews
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Aug 4
Order within 18 hours and 23 minutes
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Style: Madagascar Mix


Features

  • REAL GEMSTONES FROM MADAGASCAR - 3 pounds of raw rocks includes rose quartz, labradorite, red jasper, yellow jasper, indigo gabbro, and polychrome jasper, quantities of each gemstone may vary
  • FOUR GRADES OF GRIT - Coarse, Medium, Fine, Polish. Transform your raw stones from rough rocks to dazzling gemstones, this refill kit also works with all rock tumblers
  • JEWELRY FASTENINGS - Additional rock tumbler accessories include 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring to 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
  • HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right!

Brand Name: Blue Marble


Age Range Description: 8 years and up


Sub Brand: National Geographic


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


Manufacturer Maximum Age (MONTHS): 1188.0


Manufacturer Minimum Age (MONTHS): 96.00


Global Trade Identification Number: 61


Set Name: Mega Madagascar Pack


Manufacturer: JMW Sales, Inc.


UPC: 816448027161


Manufacturer Part Number: NGMADREFILLMEGA


Model Number: NGMADREFILLMEGA


Included Components: 1 Full-color Learning Guide with Instructions, 12 Polishing Grit Packets, 3 Pounds Rough Rocks, 5 Jewelry Settings


Item Type Name: Including Rose Quartz, Jasper, Labradorite, and More, Tumbler Grit and Jewelry Settings


Number of Players: 1


Educational Objective: Geology, Learning and Education, Rock Tumbling Experience


Power Source: Hand-powered


Supported Battery Types: No batteries required


Operation Mode: Manual


Indoor Outdoor Usage: Indoor


Is Assembly Required: No


Theme: Fantasy


Color: Multicolor


Subject Character: Jewelry Making


Size: Medium


Item Dimensions: 6 x 5.5 x 7 inches


Material Type: Rough Rocks


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 4

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great rocks to turn into gems
Style: Madagascar Mix
Perfect for rock collectors and gem Collectors alike you get a ton of rocks that you tumble into gems the quality is amazing easy to tumble
Reviewed in the United States on January 12, 2026 by Kendra Bishop

  • Gift for great grandson’s birthday.
Style: Madagascar Mix
Bought this for great grandson’s birthday at his request. He was very pleased.
Reviewed in the United States on March 11, 2026 by Amazon shopper

  • ok
Style: Madagascar Mix
good
Reviewed in the United States on January 21, 2026 by Vasily Knyazev

  • Super cool, just loud
Style: Gemstone Mix
Its a really cool my son loves it. The only down fall is its really loud.
Reviewed in the United States on October 31, 2025 by Cheyeene Brown

  • Refills
Style: Gemstone Mix
Nice refill packs
Reviewed in the United States on December 30, 2025 by Mark S.

  • Great
Style: Madagascar Mix
Great
Reviewed in the United States on December 25, 2025 by Robert Roth

  • 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

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