What is the method of how to open them? Do you need to have a separate tool for that?

The best way to open them is to take a large file & carefully cut a groove around the Geode along any depressions in the shape. Place in on a towel on a concrete floor. Be sure to put on safety glasses! Take a large chisel and place it in the groove. Strike the end of the chisel with a hammer to break the Geode open. Be careful everyone standing near has their safety gasses on as well!

Can use a sharp,big knife or if not, what do you use

Please do not even consider attempting this with a knife. That is an E.R. trip in the making. We were quite successful with a hammer and wide chisel.

Does the item include a hammer?

If you don't already have a hammer, this item is not for you.

They are real just not real impressive. You're better off to buy bigger geodes online. The kit has nothing spectacular you need. My package was full of solid rocks. Took a 5 lb sledge to get the apart. 100% waste of money.

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National Geographic Break Open 5 Jumbo Geodes Earth Science Kit for Kids | Extra-Large Natural Geodes, Safety Goggles, Real Crystal Interiors, Break Your Own Geodes, Earth Science, Birthday Gift

Product ID: 460244025

💎5 jumbo natural geodes

🔬magnifying glass included

🛡️safety goggles for protection

€ 113.64

Duties & taxes included

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Crack open wonder, discover your world!

DISPLAY YOUR DISCOVERIES - Show off your crystal treasures with 3 included display stands—turn your finds into art.
EXPLORE SCIENCE HANDS ON - Includes a magnifying glass and full-color learning guide to dive deep into earth science.
SAFE ENGAGING STEM FUN - Comes with safety goggles to ensure a secure, immersive learning experience for kids 8+.
UNLEASH YOUR INNER GEOLOGIST - Break open 5 extra-large, 100% natural geodes packed with dazzling real crystals.
TRUSTED QUALITY BY NATIONAL GEOGRAPHIC - Premium educational kit backed by exceptional service and a brand you can trust.

The National Geographic Break Open 5 Jumbo Geodes Kit offers kids aged 8+ a thrilling hands-on STEM experience with five extra-large, natural geodes filled with real crystals. Equipped with safety goggles, a magnifying glass, display stands, and a full-color educational guide, this premium kit combines fun, learning, and display-ready treasures—all backed by National Geographic’s trusted quality.

Specifications

ASIN	B0B69N5W93
Age Range Description	8 years and up
Best Sellers Rank	#26,707 in Toys & Games ( See Top 100 in Toys & Games ) #247 in Educational Science Kits
Brand Name	Blue Marble
Customer Reviews	4.2 4.2 out of 5 stars (1,173)
Educational Objective	STEM
Global Trade Identification Number	00810070621544
Included Components	Geodes
Item Dimensions	12.2 x 11.02 x 3.86 inches
Item Type Name	Earth Science Kit with 5 Premium, Extra-Large Geodes with Crystals
Manufacturer	JMW Sales, Inc.
Manufacturer Maximum Age (MONTHS)	1188
Manufacturer Minimum Age (MONTHS)	96
Manufacturer Part Number	NGGEOJUM5
Manufacturer Warranty Description	We're proud to make the highest quality products which are backed by exceptional service.
Material Type	Geodes
Model Number	NGGEOJUM5
Number of Items	1
Set Name	National Geographic Break Open 5 Jumbo Geodes
Size	One Size
Sub Brand	National Geographic
Theme	Earth Science
UPC	810070621544
Unit Count	1 Count

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€ 113.64

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Anjali K.

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

1 month ago

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