---
product_id: 165143590
title: "National Geographic Rock Tumbler Refill Kit - 2.26 kg Mix of Rocks & Rough Gemstones for Tumbling, Rock Tumbler Supplies, Grit and Polish Refill"
brand: "blue marble"
price: "VT42603"
currency: VUV
in_stock: true
reviews_count: 13
category: "Blue Marble"
url: https://www.desertcart.vu/products/165143590-national-geographic-rock-tumbler-refill-kit-2-26-kg-mix
store_origin: VU
region: Vanuatu
---

# 2.26 kg of rocks Detailed learning guide 20 grit packets National Geographic Rock Tumbler Refill Kit - 2.26 kg Mix of Rocks & Rough Gemstones for Tumbling, Rock Tumbler Supplies, Grit and Polish Refill

**Brand:** blue marble
**Price:** VT42603
**Availability:** ✅ In Stock

## Summary

> ✨ Rock Your World with National Geographic's Refill Kit!

## Quick Answers

- **What is this?** National Geographic Rock Tumbler Refill Kit - 2.26 kg Mix of Rocks & Rough Gemstones for Tumbling, Rock Tumbler Supplies, Grit and Polish Refill by blue marble
- **How much does it cost?** VT42603 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/165143590-national-geographic-rock-tumbler-refill-kit-2-26-kg-mix)

## Best For

- blue marble enthusiasts

## Why This Product

- Trusted blue marble brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Craft Your Legacy:** Transform polished stones into stunning jewelry with 5 included settings—because your creativity deserves to shine!
- • **Polish Like a Pro:** Includes 20 grit packets for five complete tumbling cycles—your rocks will shine brighter than your future!
- • **Quality You Can Trust:** Backed by National Geographic's commitment to quality and a 100% satisfaction guarantee—because you deserve the best!
- • **Learn While You Create:** Comes with a detailed guide packed with polishing tips and fascinating stone facts—perfect for STEM enthusiasts!
- • **Unleash Your Inner Geologist:** Dive into a world of 2.26 kg of unpolished rocks and gemstones, perfect for the aspiring rock hound!

## Overview

The National Geographic Rock Tumbler Refill Kit offers a diverse mix of 2.26 kg of unpolished rocks and gemstones, complete with 20 grit packets for multiple tumbling cycles. It includes jewelry settings for crafting and a detailed learning guide, ensuring a fun and educational experience for ages 8 and up.

## Description

National Geographic Rock Tumbler Refill Kit - 2.26 kg Mix of Rocks & Rough Gemstones for Tumbling, Rock Tumbler Supplies, Grit and Polish Refill : desertcart.co.uk: Toys & Games

Review: I used it as an educational toy. - I used it as an educational toy for my children.
Review: Great starter kit. - Excellent.

## Features

- ENORMOUS VARIETY - This rock tumbler refill kit has 2.27 kilograms of unpolished rocks and gemstones consisting of 906 g gemstone mix, 453 g agate mix, 453 g Madagascar mix, and 453 g jasper mix
- ROCK POLISHING GRIT – There are 20 total rock tumbler grit packets in the kit, enough for five complete tumbling cycles with any rock tumbler
- JEWELLERY SETTINGS – Once your rocks are polished, use the 5 included jewellery settings to create beautiful keepsakes or use the included storage pouch to keep your favorite specimens all in one place
- DETAILED LEARNING GUIDE – The learning guide includes polishing instructions along with fascinating information about the stones in the kit
- RESPECTED QUALITY - National Geographic is proud to provide only the highest quality STEM toys and all our kits are backed by our 100% satisfaction guarantee

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XM95HZY |
| Age Range Description | 8 years and up |
| Best Sellers Rank | 69,748 in Toys & Games ( See Top 100 in Toys & Games ) 750 in Educational Science Kits |
| Brand Name | Blue Marble |
| Colour | Multicolor |
| Country Of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,919) |
| Educational Objective | STEM |
| Global Trade Identification Number | 00816448027178 |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required | No |
| Item Dimensions | 17.5 x 15.5 x 15 centimetres |
| Item Weight | 6.51 Pounds |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Part Number | NGWORLDREFILL |
| Manufacturer Warranty Description | National Geographic Toys is proud to provide a 100% satisfaction guarantee |
| Material Type | Rough Rocks, Gemstones & Petrified Wood |
| Maximum Age Recommendation | 1188.00 |
| Minimum Age Recommendation | 96.00 |
| Model Number | NGWORLDREFILL |
| Number of Players | 1 |
| Operation Mode | Automatic |
| Power Source | manual winding |
| Set Name | Rock Tumbler Refill Kit |
| Size | Medium, Small |
| Supported Battery Types | No batteries required |
| Theme | Geology |
| UPC | 816448027178 |

## Images

![National Geographic Rock Tumbler Refill Kit - 2.26 kg Mix of Rocks & Rough Gemstones for Tumbling, Rock Tumbler Supplies, Grit and Polish Refill - Image 1](https://m.media-amazon.com/images/I/91sA8CejWrL.jpg)

## Questions & Answers

**Q: hi we have lost the cord for this, is there one we can purchase?**
A: They are great to deal with I would call them

**Q: With my rock tumbler kit i received 15% off my next purchase of refill pack.  The savings will not apply to the 5# refill, why?**
A: I have tried using this coupon with several different refill packs only for Amazon to not accept it. There seems to be a disconnect between NatGeo and Amazon regarding their promotional coupon codes.

**Q: How to identify tumbled rocks?  i ruined the manual,  its been years since college geology.  any hints?  seriously,  all i can identify is tigers eye.**
A: You can use the internet and now you can get a app from the app store for all rock's identification good luck   : )

**Q: Are the stones ethically sourced?**
A: As a science company we take great care in assuring that all our products are sourced ethically and appropriately.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I used it as an educational toy.
*by D***A on 18 January 2020*

I used it as an educational toy for my children.

### ⭐⭐⭐⭐⭐ Great starter kit.
*by D***N on 2 June 2021*

Excellent.

### ⭐⭐⭐ Didn't Realy Work. Disappointing results
*by M***5 on 24 August 2021*

Very disappointing, used stones bought from national geographic and the supplied extra powders, followed the instructions and after over a month smooth but dull stones. Double checked for small pieces that might be causing damage cleaned everything and did the whole process from start to finish again, another month plus later, still dull. Checked on line said it might be hard water, got some demineralised water and just ran the polishing process, it has taken 6 weeks of constant polishing to achieve a slight sheen on some of the stones whilst a small number are still dull. Very disappointing. Been packed in the loft likely to never come out again, money wasted should have just bought some polished stones.

## Frequently Bought Together

- 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
- Blue Marble 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 Kit – Hobby Edition Includes Rough Gemstones, and 4 Polishing Grits, Great STEM Science Kit for Geology Enthusiasts, Rock Polisher for Kids and Adults

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-07*