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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[ナショナルジオグラフィック]National Geographic Break Open 10 Geodes and Explore Crystals Science Kit NGGEO10 [並行輸入品]

Product ID: 730787352

Details

サイズ
Basic
テーマ
Science
ブランド
Blue Marble
商品寸法 (長さx幅x高さ)
7 x 19.7 x cm
対象年齢
ユース

💎10 premium natural geodes

📚16-page full-color STEM guide

🛡️Includes safety goggles & display stands

€ 110.16

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Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Crack open curiosity, reveal brilliance!

SAFETY MEETS FUN - Equipped with safety goggles ensuring a secure and immersive exploration experience for young geologists.
SHOWCASE YOUR FINDS LIKE A PRO - Comes with 3 display stands to elegantly exhibit your crystal collection and spark conversations.
DISCOVER HIDDEN CRYSTAL TREASURES - Break open 10 authentic geodes to reveal dazzling natural crystals inside—each a unique geological marvel.
ENGAGE WITH HANDS ON STEM LEARNING - Includes a vibrant 16-page full-color guide that transforms curiosity into scientific understanding.
TRUSTED NATIONAL GEOGRAPHIC QUALITY - Backed by a century-plus legacy of scientific education, delivering premium, authentic specimens.

The National Geographic Break Open 10 Geodes Science Kit offers an immersive STEM experience by letting users crack open 10 genuine natural geodes to discover colorful crystals inside. Designed for youth aged 8 and up, it includes safety goggles, display stands, and a detailed 16-page educational guide, making it a perfect blend of fun, learning, and display-worthy discoveries—all backed by National Geographic’s trusted legacy.

Specifications

ASIN	B0160JB7IS
Age Range Description	Youth
Amazon Bestseller	#156,060 in Toys & Games ( See Top 100 in Toys & Games ) #199 in Earth Sciences & Geology Science Kits
Brand Name	Blue Marble
Customer Reviews	4.5 4.5 out of 5 stars (35,400)
Educational Objective	STEM
Global Trade Identification Number	00851456006470
Included Components	10 premium quality geodes, safety goggles, magnifying glass, display stand, learning guide
Is Assembly Required	No
Item Dimensions	7 x 19.7 x 30.5 cm
Item Type Name	DISPLAY STAND - A great STEM science gift for minerals and geology enthusiasts of all ages
Item Weight	971 g
Manufacturer	Discover with Dr. Cool
Manufacturer Minimum Age (MONTHS)	96.0
Manufacturer Part Number	NGGEO10
Material Type	Crystal Geode
Model Number	NGGEO10
Size	Basic
Sub Brand	National Geographic
Theme	Science
UPC	851456006470
Unit Count	1.00 Count

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TrustScore 4.5 | 7,300+ reviews

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€ 110.16

Duties & taxes included

In stock

Sold byAmazon FranceDelivered 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 France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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