Blue Marble
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NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with any Rock Polisher & Tumbler Supplies
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NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with any Rock Polisher & Tumbler Supplies
The rock polishing grit in this pack is high-quality silicon carbide and will polish 8-10 lbs of rocks. Ceramic tumbler media makes the entire rock tumbling process more effective and GemFoam is a unique new rock polisher media that gives unprecedented shine to tumbled rocks. The tumbling supplies in this set are safe to use with any rock tumbler.
NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with any Rock Polisher & Tumbler Supplies
Item #: 220413482

NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with any Rock Polisher &

89% of respondents would recommend this to a friend

Item #: 220413482

BND 94

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The rock polishing grit in this pack is high-quality silicon carbide and will polish 8-10 lbs of rocks. Ceramic tumbler media makes the entire rock tumbling process more effective and GemFoam is a unique new rock polisher media that gives unprecedented shine to tumbled rocks. The tumbling supplies in this set are safe to use with any rock tumbler.
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What Stands Out

Complete Tumble Set
This kit includes all necessary materials, such as grit, polish, and ceramic media, ensuring a seamless rock tumbling experience for enthusiasts of all levels.
High-Quality Madagascar Rocks
Featuring 3 pounds of handpicked Madagascar rocks, this refill kit guarantees stunning results and colorful gemstones that enhance both the tumbling process and final jewelry creations.
User-Friendly Design
The included GemFoam offers enhanced protection and easier handling, making the tumbling process more accessible and enjoyable for beginners while achieving professional-grade results.

Product Details

Get the Ultimate Rock Tumbler Media, 4 Stage Bulk Grit, Ceramic Pellets, and GemFoam Polishing Tumbling Media. Perfect for rock polishing. Shop now at Ubuy Brunei!
  • High-quality silicon carbide rock polishing grit can polish 8-10 lbs of rocks
  • Includes measuring scoop and secure storage containers for easy storage
  • Ceramic tumbler media improves rock tumbling process, reduces noise, and acts as a filler for smaller batches
  • Unique GemFoam adds unprecedented shine to tumbled rocks when added after the final grit cycle
  • Safe to use with any rock tumbler, yields impressive results
  • Kit includes 4 stages of silicon carbide polishing grit, 1.5 pounds of ceramic media, and 30 grams of GemFoam
Brand NameBlue Marble
Age Range Description14 years and up
Sub BrandNATIONAL GEOGRAPHIC
Manufacturer Maximum Age (MONTHS)1188
Number of Packs4
Manufacturer Minimum Age (MONTHS)168
Global Trade Identification Number00816448020636
Set NameRock Tumbler Grit Refill Kit
ManufacturerJMW Sales, Inc.
UPC816448020636
Unit Count1 Count
Included Components4 Stages of Rock Polishing Grit, 10 mL Grit Scoop, Rock Tumbling Instructions
Item Type NameRock Polishing Grit Media
Model NumberNGBULKGRIT
Manufacturer Part NumberNGBULKGRIT
Number of Players1
Educational ObjectiveSTEM
Supported Battery TypesNo batteries required
Operation ModeManual
ThemeRock Tumbling
ColorBlack
SizeOne Size
Item Weight1.78 kg
Item Dimensions5.5 x 5.5 x 4.25 inches (14 x 14 x 10.8 cm)
Material TypeSilicone

Who Should Buy?

Suitable For
  • Hobbyist Tumblers

    Ideal for rock tumbling enthusiasts looking to create polished stones for personal collections or jewelry making.

  • Educational Uses

    Great for teachers and students interested in geology or hands-on science projects, enhancing learning with fun activities.

  • Gift Options

    Perfect for gifting to kids or adults, sparking interest in geology or creative crafting projects with rocks.

Not Suitable For
  • Professional Jewelers

    May not meet the precise requirements for professional jewelry-making processes demanding advanced techniques and finer products.

Product Description

NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with any Rock Polisher & Tumbler Supplies

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is included in the National Geographic Rock Tumbler Grit and Polish Refill Kit?

    Answer: The National Geographic Rock Tumbler Grit and Polish Refill Kit includes tumbling grit media and polish designed for a variety of rock tumbling needs. Specifically, the kit typically contains coarse grit, medium grit, fine grit, and polishing powder. This comprehensive selection allows users to process up to 20 lbs. of rocks, making it suitable for both beginners and experienced hobbyists. By providing multiple grits, users can achieve smoother, shinier finishes on their rocks, enhancing their overall beauty and value.
  • Question: How does the rock tumbling process work with this kit?

    Answer: The rock tumbling process involves several stages, each utilizing specific grits to gradually smooth and polish the rocks. Initially, coarse grit is used to shape the rough stones, followed by medium and fine grit to refine their surfaces. Finally, the polishing powder is added in the last stage to bring out a brilliant shine. This systematic approach ensures that the rocks are properly prepared at each stage, ultimately leading to a high-quality polished finish that showcases their natural colors and patterns.
  • Question: Can I use this grit and polish refill kit with any rock tumbler?

    Answer: Yes, the National Geographic Grit and Polish Refill Kit is designed to be compatible with any rock tumbler. Whether you own a National Geographic tumbler or another brand, the grits and polish in this kit can effectively be used to achieve the desired results. This versatility allows hobbyists to utilize their existing equipment while benefiting from high-quality supplies to create beautifully polished stones.
  • Question: How much rock can I process with this kit?

    Answer: The refill kit is capable of processing up to 20 lbs. of rocks, making it an excellent choice for larger batches. Processing this volume allows users to experiment with different types and sizes of rocks, which can result in varying finishes and textures. Whether you’re tumbling gemstones, quartz, or even agate, the kit provides ample materials to cover significant rock quantities while achieving quality results.
  • Question: Is the polishing powder safe to use?

    Answer: Yes, the polishing powder included in the refill kit is safe for use when following the provided instructions. It is formulated specifically for rock tumbling and is generally non-toxic when used correctly. However, it's advisable to avoid inhalation or excessive skin contact while handling the materials. By taking basic safety precautions and using the polish in a well-ventilated area, users can enjoy a safe and fulfilling tumbling experience.
  • Question: What types of rocks work best with this tumbling kit?

    Answer: This tumbling kit works best with a variety of hard stones, such as agate, jasper, and quartz. These types of rocks respond well to the tumbling process and deliver impressive results in terms of polish and sheen. Softer stones, like limestone or shale, may not produce the same level of shine and can wear down more quickly. For the best outcomes, selecting the right type of rock based on its hardness will significantly influence the final appearance.
  • Question: How do I store the unused grit and polish?

    Answer: To maintain the effectiveness of unused grit and polish, it's important to store them in a cool, dry place away from direct sunlight. Keeping the materials in their original containers or sealing them in airtight bags can help avoid moisture and contamination. Proper storage ensures longevity and readiness for future rock tumbling projects, enabling hobbyists to maximize their investment in the refill kit over time.
  • Question: Can I use this kit for other crafting projects besides rock tumbling?

    Answer: While the primary purpose of the National Geographic Grit and Polish Refill Kit is for rock tumbling, some users find creative ways to incorporate the materials into other crafting projects. For example, the polishing powder can sometimes be used on glass or ceramic items to achieve a specific finish. However, results may vary, and it’s important to test any new applications on a small scale before committing to larger projects to ensure optimal outcomes.
  • Question: Where can I buy the National Geographic Rock Tumbler Grit and Polish Refill Kit?

    Answer: You can buy the National Geographic Rock Tumbler Grit and Polish Refill Kit on Ubuy, which offers a wide selection of rock tumbling supplies. Ubuy is known for its reliable service and extensive product range, making it a suitable option for both beginners and seasoned rock tumblers. You can easily find the refill kit along with other tumbling accessories to support your rock polishing projects.
  • Question: How long does the tumbling process take for the rocks?

    Answer: The complete tumbling process can generally take anywhere from several days to a few weeks, depending on the initial roughness of the rocks and the desired finish. Each stage (coarse, medium, fine, and polish) typically lasts between 4 to 7 days. Allowing adequate time during each phase is crucial, as rushing the process can lead to subpar results. Patience is key in achieving that perfect shine on your rocks!

Blue Marble Tumbling Media NGBULKGRIT Editorial Review

NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit is an essential addition for rock polishing enthusiasts, providing everything needed to polish up to 20 lbs. of rocks. With four stages of grit included along with a handy 10 mL scoop, this kit ensures a comprehensive approach to rock tumbling. Users have praised its ease of use, making it perfect for aspiring geologists and fun family activities. The instructions included are a helpful feature for learning proper techniques, and many appreciate the quality that matches the original tumbler kits. Overall, this refill kit is a reliable choice to keep the polishing projects going strong.

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Pros

  • Includes four stages of polishing grit
  • Suitable for ages 14 and up
  • Designed for easy use with any tumbler
  • Great for family bonding activities
  • Comes with a grit scoop for convenience

Cons

  • Some grits may be used quicker than others.

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BND 94

Order now and get it around Monday, September 14

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Features & Benefits

  • High-quality silicon carbide.
  • Polishes 8-10 lbs of rocks.
  • Ceramic tumbler media improves rock tumbling process.
  • GemFoam provides unprecedented shine to tumbled rocks.
  • Safe to use with any rock tumbler.
  • High-quality educational toy with exceptional service.

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