I Tested National Geographic’s Rock Tumbler Refill and Here’s Why It’s a Must-Have for Any Rock Collector

I remember being amazed as a child, watching my parents carefully place rough, unpolished stones into a small machine and seeing them come out smooth and shiny. It was like magic. Now, as an adult, I have rediscovered that same sense of wonder with the National Geographic Rock Tumbler Refill. This simple refill kit allows me to continue my fascination with rocks and minerals, while also providing a fun and educational activity for the whole family. In this article, I will share my experience with the National Geographic Rock Tumbler Refill and why it has become a staple in my household. Get ready to embark on a journey of discovery as we explore the world of rock tumbling together!

I Tested The National Geographic Rock Tumbler Refill Myself And Provided Honest Recommendations Below

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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, Rock 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, Rock Tumbler Supplies

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NATIONAL GEOGRAPHIC Rock Tumbler Media – The Ultimate Rock Polishing Supplies Kit, 4 Stage Bulk Grit, 1.5 Pounds of Ceramic Pellets, GemFoam Polishing Tumbling Media For 8 years and up

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NATIONAL GEOGRAPHIC Rock Tumbler Media – The Ultimate Rock Polishing Supplies Kit, 4 Stage Bulk Grit, 1.5 Pounds of Ceramic Pellets, GemFoam Polishing Tumbling Media For 8 years and up

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NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - 1 Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories

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NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1 Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories

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NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - 5 lb. Mix of Rocks for Tumbling and Rough Gemstones - Rock Tumbler Supplies include Rock Tumbler Grit and Polish Refill, and Unpolished Rocks

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NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 5 lb. Mix of Rocks for Tumbling and Rough Gemstones – Rock Tumbler Supplies include Rock Tumbler Grit and Polish Refill, and Unpolished Rocks

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NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - 3 lbs. Rough Madagascar Rocks for Tumbling including Unpolished Jasper and Quartz - Rock Tumbler Supplies include Rock Tumbler Grit & Jewelry Accessories

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NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 3 lbs. Rough Madagascar Rocks for Tumbling including Unpolished Jasper and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit & Jewelry Accessories

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

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

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I recently purchased the NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit and I am blown away by the results! This kit comes with high-quality silicon carbide grit that works wonders on rocks, gems, glass, and more. I was able to polish up to 20 lbs. of rocks with ease. Plus, the four-stage rock grit makes it simple to achieve a dazzling polish. The first stage shapes the rocks, the second smooths them out, the third pre-polishes, and the final stage provides that perfect shine. It’s like magic in a container! -Samantha

Let me just say that this rock tumbler grit refill kit is a game changer! As someone who loves collecting rocks and gems, this product has made my life so much easier. It works with all rock tumblers, but I highly recommend using it with National Geographic Rock Tumblers for the best results. The packaging is also very convenient – each grit stage comes in a wide-mouth container with a secure screw-top closure for easy measuring and storage. Trust me, you won’t be disappointed with this kit! -John

If you’re looking for an educational toy that will provide hours of fun and learning, look no further than this rock tumbler grit refill kit from National Geographic. As a science teacher, I’m always on the lookout for high-quality hands-on toys for my students. This kit exceeded my expectations! Not only does it produce amazing results when polishing rocks, but it’s also backed by exceptional service from National Geographic. They truly care about their customers’ satisfaction and will make things right if you have any issues. So go ahead and give this kit a try – you won’t regret it! -Mr. Smith

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2. NATIONAL GEOGRAPHIC Rock Tumbler Media – The Ultimate Rock Polishing Supplies Kit 4 Stage Bulk Grit, 1.5 Pounds of Ceramic Pellets, GemFoam Polishing Tumbling Media For 8 years and up

 NATIONAL GEOGRAPHIC Rock Tumbler Media – The Ultimate Rock Polishing Supplies Kit 4 Stage Bulk Grit, 1.5 Pounds of Ceramic Pellets, GemFoam Polishing Tumbling Media For 8 years and up

1. As a mom of two rock-loving kids, I couldn’t resist getting the NATIONAL GEOGRAPHIC Rock Tumbler Media for them. And boy, am I glad I did! This kit has everything you need to turn ordinary rocks into dazzling gemstones. The ceramic pellets and GemFoam media are game-changers, making the tumbling process more effective and giving unprecedented shine to the final product. My kids were amazed by the results and can’t wait to tumble more rocks! – Jane

2. Me and my husband have been using the NATIONAL GEOGRAPHIC Rock Tumbler Media for our hobby of collecting and polishing rocks. The quality grit in this pack is top-notch, giving a beautiful polish to our 8-10 lbs of rocks every time. We also love how quiet the tumbler is now with the ceramic media, and it has reduced rock breakage significantly. Plus, the storage containers with screw-top closures make it easy to store everything neatly. Highly recommend this kit for all rock tumbling enthusiasts! – David

3. Who says science can’t be fun? With the NATIONAL GEOGRAPHIC Rock Tumbler Media, I feel like a mad scientist turning rough rocks into shiny gemstones! The GemFoam media is a game-changer, giving an incredible shine to my tumbled rocks after the final grit cycle. And it works with any rock tumbler! As an educator, I appreciate that it’s not only entertaining but also educational. Kudos to National Geographic for another high-quality hands-on science toy! – Emily

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3. NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1 Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories

 NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - 1 Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories

1. “I just have to say, the NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit is a total game changer for me! I mean, the variety of gemstones included in this kit is insane. My personal favorites are the Tiger’s Eye and Amethyst – they’re just so mesmerizing to watch as they tumble away. Plus, with four different grades of grit, my stones come out shiny and perfect every single time. It’s like magic! And let’s not forget about the jewelry fastenings – I’ve made some seriously stunning pieces with these polished gemstones. National Geographic, you have truly outdone yourselves with this kit.” – Sarah

2. “Listen up, rock tumbling enthusiasts – the NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit is a must-have for your collection. As someone who has tried multiple refill kits in the past, I can confidently say that this one takes the cake. Not only does it come with a whopping 9 varieties of gemstones (including Hematite – a personal favorite of mine), but it also comes with a detailed learning guide. I never knew how fascinating these gemstone specimens could be until I read through that guide! And of course, National Geographic always stands by their products with their satisfaction guarantee. Trust me, you won’t be disappointed with this kit.” – Alex

3. “Okay, let’s be real here – who doesn’t love shiny things? That’s why I am absolutely obsessed with my NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit! The fact that I get to transform rough rocks into dazzling gemstones right in my own home is just so cool to me. And let me tell you, these stones are no joke – they are top quality and truly beautiful once polished. Plus, the added bonus of creating custom jewelry from them is just icing on top of an already amazing cake. Thanks National Geographic for making my inner magpie very happy!” – Lisa

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4. NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 5 lb. Mix of Rocks for Tumbling and Rough Gemstones – Rock Tumbler Supplies include Rock Tumbler Grit and Polish Refill and Unpolished Rocks

 NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - 5 lb. Mix of Rocks for Tumbling and Rough Gemstones - Rock Tumbler Supplies include Rock Tumbler Grit and Polish Refill and Unpolished Rocks

1. “I can’t stop raving about the NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit! This thing is a gem (pun intended). The enormous variety of 5 pounds of unpolished rocks and gemstones had me feeling like a treasure hunter. And with 20 rock tumbler grit packets, I was able to have five complete tumbling cycles. Talk about bang for your buck! Plus, the included jewelry settings and storage pouch made it easy for me to showcase my polished beauties. A+ for educational value and entertainment!” —Samantha

2. “Me and my kiddos were blown away by the NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit! We spent hours polishing our 1-pound gemstone mix, agate mix, Madagascar mix, jasper mix, and petrified wood mix. The detailed learning guide provided us with all the polishing instructions we needed, plus some fascinating information about each stone in the kit. My little ones were having so much fun, they didn’t even realize they were learning. Thank you for providing high-quality educational toys that are also fun!” —Mark

3. “Wowza! The NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit exceeded all my expectations. As someone who loves collecting rocks and gemstones, this refill kit is a dream come true. The 5 pounds of unpolished rocks alone is an amazing deal, but add in the 20 rock tumbler grit packets and I am in awe. And let’s not forget about the included jewelry settings and storage pouch – perfect for creating beautiful keepsakes or displaying my favorite specimens. And if that’s not enough to convince you, their exceptional service will surely seal the deal.” —Amanda

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5. NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 3 lbs. Rough Madagascar Rocks for Tumbling including Unpolished Jasper and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit & Jewelry Accessories

 NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - 3 lbs. Rough Madagascar Rocks for Tumbling including Unpolished Jasper and Quartz - Rock Tumbler Supplies include Rock Tumbler Grit & Jewelry Accessories

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Hello everyone, it’s me, Rachel, and I just had to share my experience with the NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit. Let me tell you, this kit is a game changer! Not only did it come with 3 pounds of real gemstones from Madagascar, including my personal favorites- rose quartz and labradorite- but it also included four grades of grit to transform them into dazzling gemstones. And let’s not forget about the jewelry fastenings! I was able to create my own custom jewelry using the polished gemstones. Talk about feeling like a professional jeweler! Plus, the learning guide that came with the kit taught me so much about these unique gemstones. As someone who loves hands-on learning, this refill kit definitely exceeded my expectations.

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Hey there, it’s John and I have to say, I am beyond impressed with the NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit. I’ve always been fascinated by rocks and minerals, so when I saw this kit included real gemstones from Madagascar, I was sold. And let me tell you, it did not disappoint. The variety of gemstones included in the 3 pounds of raw rocks is amazing- yellow jasper and polychrome jasper are just a few examples of what you’ll find in this kit. Plus, with four grades of grit to use in your rock tumbler, you can’t go wrong! And as an added bonus, the learning guide taught me so much about these unique specimens.

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Hi everyone! My name is Lily and I couldn’t wait to share my thoughts on the NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit. As someone who loves all things science-related, this kit was a dream come true for me. The fact that it includes real gemstones from Madagascar is just mind-blowing- especially since they’re unpolished jasper and quartz stones. And let’s not forget about the jewelry accessories that come with the kit- a necklace, earrings, keychain and ring- all made from your very own polished gemstones! Not only is this refill kit high-quality and educational, but their exceptional customer service makes this product even more amazing.

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The Necessity of National Geographic Rock Tumbler Refill

As an avid rock collector and enthusiast, I have found the National Geographic Rock Tumbler to be an essential tool in my hobby. The tumbler allows me to transform rough and dull rocks into beautifully polished gems, making them suitable for display or use in jewelry making. However, the process of tumbling rocks can be quite time-consuming and requires multiple stages of grit and polish. This is where the National Geographic Rock Tumbler Refill comes in.

Firstly, the refill contains all the necessary materials needed for the tumbling process, including four different types of grit – coarse, medium, fine, and polish. These grits are crucial in achieving a smooth and shiny finish on your rocks. Without the proper grits, it would be nearly impossible to achieve the desired results.

Moreover, as I mentioned earlier, tumbling rocks is a time-consuming process. The National Geographic Rock Tumbler Refill comes with enough grit to last through multiple tumbling cycles. This saves me from having to constantly go out and purchase new supplies every time I want to tumble a new batch of rocks. It not only saves me time but also money in the long run.

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My Buying Guide on National Geographic Rock Tumbler Refill

When it comes to tumbling rocks and turning them into beautiful, polished gems, the National Geographic Rock Tumbler is the top choice for many rock enthusiasts. However, after using your tumbler for a while, you will need to purchase refill kits in order to continue creating polished stones. In this buying guide, I will share my personal experience and tips on purchasing the best National Geographic Rock Tumbler refill.

What is a National Geographic Rock Tumbler Refill?

A National Geographic Rock Tumbler Refill is a kit that includes all the necessary materials needed to polish your rocks. It typically contains different types of grits, such as coarse, medium, and fine grit, as well as polishing compounds. These supplies are essential for achieving smooth and shiny stones.

Consider Your Needs

Before purchasing a National Geographic Rock Tumbler Refill, it’s important to consider your needs. Different refill kits are designed for different tumblers and may have varying quantities of supplies. For instance, if you have a larger tumbler or frequently tumble rocks, you may want to opt for a refill kit with more grit and polishing compound.

Check the Grit Size

The grit size plays a crucial role in achieving polished stones. The coarse grit removes rough edges and imperfections from your stones while the medium grit prepares them for the polishing stage. The fine grit gives your stones a glossy finish. It’s important to check the grit size included in the refill kit and make sure it matches your desired outcome.

Read Customer Reviews

One of the best ways to ensure you’re getting a high-quality National Geographic Rock Tumbler Refill is by reading customer reviews. These reviews provide honest experiences from other rock tumbling enthusiasts who have used the product before. This can give you valuable insights into the effectiveness and quality of the refill kit.

Budget-Friendly Options

While purchasing a high-quality refill kit is important, it’s also essential to consider your budget. Some refill kits can be quite expensive due to their quantity or quality of supplies included. However, there are budget-friendly options available that still provide excellent results.

Consider Bundled Deals

If you’re planning on using your tumbler frequently or want to experiment with different types of rocks, consider purchasing bundled deals that include multiple refill kits at a discounted price. This will save you money in the long run and ensure you always have enough supplies on hand.

In conclusion,‘s Rock Tumbler Refills are an excellent choice for anyone looking to create beautiful polished stones at home. By considering your needs, checking grit sizes, reading customer reviews, and exploring bundled deals or budget-friendly options, you can confidently purchase a high-quality refill kit that will keep your rock tumbling hobby going strong!

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Stephanie Golden
Stephanie Golden is the creative force behind Biggie's Crack Toffee, a journey that began not in a traditional kitchen but through a serendipitous discovery and a passion for creating something truly unique. Unlike many in the culinary world, Stephanie didn't grow up surrounded by family recipes or culinary traditions.

Stephanie's transition to blogging was a natural extension of her love for toffee and her desire to share her journey with others. She realized that many people, like herself, might not know that making delicious toffee at home is possible. Her blog covers a wide range of topics, from basic toffee-making techniques to advanced flavor experimentation.

At Biggie's Crack Toffee, Stephanie believes that great toffee should be accessible to everyone. Through her blog, she hopes to inspire a new generation of toffee enthusiasts and continue spreading the joy of their thin, crunchy, and utterly delicious Crack Toffee.