---
product_id: 203519949
title: "NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit"
brand: "blue marble"
price: "4552245₫"
currency: VND
in_stock: false
reviews_count: 13
url: https://www.desertcart.vn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough
store_origin: VN
region: Vietnam
---

# 9 unique gemstone varieties 4 jewelry fastenings included 4-step grit polishing system NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit

**Brand:** blue marble
**Price:** 4552245₫
**Availability:** ❌ Out of Stock

## Summary

> 💎 Turn Rough into Remarkable – Your Gemstone Journey Starts Here!

## Quick Answers

- **What is this?** NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit by blue marble
- **How much does it cost?** 4552245₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough)

## 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

- • **Create Custom Jewelry Like a Pro:** Includes necklace, earrings, keychain, and ring fastenings to showcase your polished masterpieces.
- • **STEM Learning Meets Hands-On Fun:** Comes with an engaging guide packed with fascinating gemstone facts to fuel curiosity and creativity.
- • **Transform Rough Rocks into Dazzling Gems:** Master the art of tumbling with 1.36 kg of diverse raw gemstones including Amethyst and Quartz.
- • **Trusted Quality from National Geographic:** Backed by a 4.6-star rating and satisfaction guarantee—perfect for aspiring geologists and makers alike.
- • **Precision Polishing with Four Grit Grades:** Coarse to polish—achieve museum-quality shine with every step of the tumbling process.

## Overview

The NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit offers 1.36 kg of nine distinct rough gemstones, including Amethyst and Quartz, paired with a four-stage grit system to polish stones to perfection. Designed for ages 8+, it includes jewelry fastenings and an educational guide, blending STEM learning with creative craftsmanship. No batteries required, this kit is a top-rated, hands-on experience for gemstone enthusiasts and DIY jewelry creators.

## Description

NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit : desertcart.co.uk: Toys & Games

Review: Great selection - Great selection at good price
Review: Perfect present - Granddaughter loves this

## Features

- GEMSTONES OF NINE VARIETIES: Tiger’s Eye, Amethyst, Aventurine, Rose Quartz, Red Jasper, Agate, Sodalite, Dalmatian Jasper, Hematite (1.36 kg total)
- FOUR GRADES OF GRIT: Coarse, Medium, Fine, Polish. Transform your stones from rough rocks to dazzling gemstones!
- JEWELLERY FASTENINGS: 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring. Create custom jewellery 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
- SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H7WFWYT |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | Red |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,614) |
| Date First Available | 29 Sept. 2018 |
| Educational Objective(s) | STEM |
| Item model number | NGGEMREFILLMEGA |
| Language | English |
| Manufacturer recommended age | 8 years and up |
| Material Type(s) | Gemstones |
| Number of pieces | 9 |
| Product Dimensions | 13.65 x 13.5 x 13.81 cm; 1.36 kg |
| Remote Control Included? | No |
| Scale | Medium |
| tech_spec_battery_description_toys | No batteries required |

## Product Details

- **Brand:** Blue Marble
- **Age range (description):** 8 years and up
- **Colour:** Red
- **Theme:** Nature
- **Cartoon character:** Gemstones

## Images

![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 1](https://m.media-amazon.com/images/I/81C0ev6IyjL.jpg)
![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 2](https://m.media-amazon.com/images/I/81EFDXI1rfL.jpg)
![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 3](https://m.media-amazon.com/images/I/81pQlq9cMFL.jpg)
![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 4](https://m.media-amazon.com/images/I/81y6ACT6x7L.jpg)
![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 5](https://m.media-amazon.com/images/I/911vSTpZwLL.jpg)

## Questions & Answers

**Q: Can you make seaglass with it?**
A: Yes, you can make sea glass in our tumbler. Please keep in mind you won't want to use anything less than 1/4" thick, as it will just crumble and not tumble.

**Q: Does it come with a rock tumbler machine**
A: No, our Mega Refill kit does not include a rock tumbler.  Our tumbler is sold separately.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great selection
*by G***L on 26 November 2024*

Great selection at good price

### ⭐⭐⭐⭐⭐ Perfect present
*by A***A on 14 June 2025*

Granddaughter loves this

### ⭐⭐⭐⭐ Some rocks tiny chips
*by A***R on 1 October 2025*

Good value for money. Only issue is 500+g was chips too small. Will wear away in the tumbler or produce tiny chips. Otherwise we love NAT geo products. The grits good. Got 41 tumble able pieces.

## Frequently Bought Together

- 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
- 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
- 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough](https://www.desertcart.vn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-06*