---
product_id: 34394992
title: "National Geographic Starter Rock Tumbler Kit for Kids and Adults"
brand: "blue marble"
price: "534.82 DT"
currency: TND
in_stock: true
category: "Blue Marble"
url: https://www.desertcart.tn/products/34394992-national-geographic-starter-rock-tumbler-kit-for-kids-and-adults
store_origin: TN
region: Tunisia
---

# ½ lb. rough gemstones with 4-stage grit Durable motor for multiple batches Leak-proof rubber-lined barrel National Geographic Starter Rock Tumbler Kit for Kids and Adults

**Brand:** blue marble
**Price:** 534.82 DT
**Availability:** ✅ In Stock

## Summary

> 💎 Turn rough rocks into polished treasures — your personal gem studio awaits!

## Quick Answers

- **What is this?** National Geographic Starter Rock Tumbler Kit for Kids and Adults by blue marble
- **How much does it cost?** 534.82 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/34394992-national-geographic-starter-rock-tumbler-kit-for-kids-and-adults)

## 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

- • **Built to Endure:** Heavy-duty motor and leak-proof barrel ensure long-lasting, quiet operation.
- • **Learn & Impress:** Step-by-step instructions and a full-color geology guide make this a STEM powerhouse for curious minds.
- • **Polish Like a Pro:** Transform raw stones into museum-quality gems with a 4-stage polishing system.
- • **All-Inclusive Gem Lab:** Comes complete with ½ lb. of diverse rough stones plus jewelry fastenings to showcase your creations.
- • **Award-Winning Quality:** From the Toy Association’s Toy of the Year winner, backed by U.S. support for a seamless experience.

## Overview

The National Geographic Starter Rock Tumbler Kit is a durable, leak-proof rock polishing system designed for ages 8 and up. It includes a powerful motor, a rubber-lined barrel, ½ pound of rough gemstones, a four-stage polishing grit, and jewelry fastenings. This all-in-one STEM kit offers educational guides and award-winning quality, perfect for hobbyists and budding geologists eager to create polished gems and unique jewelry.

## Description

desertcart.com: National Geographic Starter Rock Tumbler Kit for Kids and Adults | Leak-Proof Rubber Barrel, 1/2 Lb. Rough Gemstones, 4-Stage Polishing Grit, Jewelry Fastenings, Geology Hobby, Birthday Gift : Toys & Games

## Features

- CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This starter rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
- A TUMBLER THAT'S MADE TO LAST - The durable motor allows you to tumble multiple batches of rocks. An improved, leak-proof barrel is lined with rubber for quieter operation while tumbling on the sturdy tumbler base.
- ALL-IN-ONE TUMBLING KIT - This kit has everything you need and then some! You get ½ a pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, and our four-stage rock polishing grit.
- EASY TO USE AND EDUCATIONAL - Detailed tumbler instructions lead you step-by-step through the rock tumbling process, A full-color learning guide details how rocks are naturally polished and has fascinating facts about the gemstones in the kit.
- desertcart EXCLUSIVE - Blue Marble has developed this product exclusively for desertcart.
- AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01I56RV0C |
| Additional Features | Spill-Proof |
| Age Range Description | 8 years and up |
| Art Craft Kit Type | Rock Polishing |
| Best Sellers Rank | #9,888 in Toys & Games ( See Top 100 in Toys & Games ) #2 in Kids' Rock Tumblers |
| Brand Name | Blue Marble |
| Color | Multicolor |
| Customer Reviews | 4.3 4.3 out of 5 stars (11,180) |
| Global Trade Identification Number | 00816448020391 |
| Included Components | 5 Jewelry Fastenings, Four Levels of Grit, Leak-proof, Rubber-lined Tumbler Barrel, Rock Tumbler, ½ Pound of Stones |
| Item Dimensions | 10.98 x 5.2 x 12 inches |
| Item Highlight | Leak-Proof Rubber Barrel, 1/2 Lb. Rough Gemstones, 4-Stage Polishing Grit, Jewelry Fastenings, Geology Hobby, Birthday Gift |
| Item Type Name | Complete Rock Tumbling Kit - Geology Hobby Science Kit, Rocks and Crystals for Kids, A Great STEM Activity |
| Item Weight | 1.9 kg |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Part Number | NGTUMBLER2 |
| Material Type | Rubber |
| Model Name | Complete Rock Tumbling Hobby Kit |
| Model Number | NGTUMBLER2 |
| Number of Packs | 1 |
| Number of Pieces | 30 |
| Paint Type | nan |
| Product Style | Modern |
| Seasons | All Seasons |
| Set Name | Necklace, Key chain, Ring, Two clip-on earring fastenings |
| Size | 1 Count (Pack of 1) |
| Subject Character | Rock Tumbling, Gemstones |
| Theme | Geology |
| UPC | 816448020391 |
| Unit Count | 1 Count |
| Warranty Description | We're proud to make the highest quality products which are backed by exceptional service. |

## Product Details

- **Age Range (Description):** 8 years and up
- **Brand:** Blue Marble
- **Color:** Multicolor
- **Item dimensions L x W x H:** 10.98 x 5.2 x 12 inches
- **Theme:** Geology

## Images

![National Geographic Starter Rock Tumbler Kit for Kids and Adults - Image 1](https://m.media-amazon.com/images/I/91kh7806KEL.jpg)

## Questions & Answers

**Q: Can this be used to tumble glass to make sea glass?**
A: Yes! I have a spot where I find lots of shards of glass and rare colors but they just aren’t “cooked” enough. I got the tumbler to finish them. The glass I have is real sea glass not fake nor bottles I break (which I have never done and won’t because I like that I find my glass and know it has a story from whence it came!) I have found it along beaches and rivers but it just needed some extra time to be perfect but because of the color rarity I wasn’t going to toss it back!

**Q: Where can I buy more grit?**
A: Amazon (there are alternatives if you want to search for a specific one you need: coarse (60/90 grit), medium (150/220 grit), fine (500 grit), rock polish (TXP aluminum oxide) but below are two choices that will contain all you’d need, are approx the same lbs of material, and will work equally well):

https://www.amazon.com/dp/B01MRKI4W0/ref=cm_sw_r_cp_api_i_8luBDbAX0440H

https://www.amazon.com/dp/B07PYFGT44/ref=cm_sw_r_cp_api_i_SkuBDbZFZBTVW

**Q: How many pounds/ounces of rocks can you put into the barrel with grit for tumbling?**
A: The Rock Tumbler can hold 1lb (16oz) of rocks in the barrel with the grit for tumbling.Thank you for your inquiry!

**Q: How long does it take from start to finish? And can you use any rocks or only the ones that come with it**
A: Each grade of sand is a different grit. About 3 weeks and one extra week to polish. You can run any rocks even ones that you find.

## Frequently Bought Together

- NATIONAL GEOGRAPHIC Starter Rock Tumbling Kit - Durable Leak-Proof Polisher for Kids Complete Geology Hobby Science Kit, Rocks and Crystals Kids, A Great STEM Activity
- NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories
- 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

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-17*