hi we have lost the cord for this, is there one we can purchase?

They are great to deal with I would call them

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?

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.

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.

You can use the internet and now you can get a app from the app store for all rock's identification good luck : )

Are the stones ethically sourced?

As a science company we take great care in assuring that all our products are sourced ethically and appropriately.

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💎 Polish, craft, and flaunt your own slice of Earth’s hidden gems!

EDUCATIONAL STEM EXPERIENCE - Detailed learning guide with step-by-step polishing instructions and fascinating geological facts to fuel curiosity and knowledge.
ORGANIZED READY TO DISPLAY - Handy storage case keeps your polished treasures safe and showcase-ready, perfect for your desk or creative space.
COMPLETE 5 CYCLE POLISHING KIT - 20 packets of specialized polishing grit ensure your stones achieve museum-quality shine every time.
CRAFT YOUR OWN JEWELRY MASTERPIECES - Includes 5 elegant jewelry settings to transform polished stones into unique, personal accessories.
MASSIVE 5 POUND ROCK GEMSTONE MIX - Dive into a diverse collection including agate, jasper, petrified wood, and rare Madagascar stones for endless creative potential.

The National Geographic Rock Tumbler Refill Kit offers 5 pounds of diverse unpolished rocks and gemstones, including agate, jasper, petrified wood, and exotic Madagascar stones. It comes with 20 packets of polishing grit for five complete polishing cycles, 5 jewelry bases to create custom wearable art, and a detailed educational guide. Perfect for STEM enthusiasts aged 8 and up, this kit combines hands-on science with creative craftsmanship, backed by National Geographic’s trusted quality.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Educational Objective(s)	STEM
Language:	English
Model Number	NGWORLDREFILL
Number of Game Players	1 US
Assembly Required	No
Batteries Required	No
Batteries Included	No
Material Type(s)	Wood
Remote Control Included?	No
Product Dimensions	17.53 x 15.49 x 14.99 cm; 2.95 kg
Item model number	NGWORLDREFILL
Manufacturer recommended age	8 years and up
Manufacturer	JMW Sales, Inc.
Item Weight	2 kg 950 g

NATIONAL GEOGRAPHIC Rock Tumbler Refill ââ‚¬â€œ 5 Pound Mix of Rocks and Gemstones for Rock Tumblers, Includes Agate, Jasper, Petrified Wood, Gemstone, and More, 5 Jewelry Settings and Polishing Grit

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