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 (ナショナルジオグラフィック) ブレイクオープンジャンボジオード 5個 - 地球科学キットプレミアム5個付き特大ジオードクリスタル付きゴーグルディスプレイスタンド科学ギフト子供用楽しいもの (Amazon限定)

Product ID: 730787353

Details

サイズ
ワンサイズ。
テーマ
地球科学
ブランド
Blue Marble
商品寸法 (長さx幅x高さ)
31 x 28 x 9.8
対象年齢
子供

💎5 jumbo crystal geodes

📚Full-color learning guide

🛡️Includes safety goggles

₨80971

Duties & taxes included

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💥 Crack, Discover, Display – Your Crystal Adventure Starts Here!

SHOW OFF YOUR FINDS - 3 elegant display stands let you showcase your unique crystal treasures like a true collector.
LEARN WHILE YOU PLAY - Dive into geology with a vibrant, full-color guide that makes science irresistibly fun and educational.
SAFETY MEETS DISCOVERY - Equipped with protective goggles so you can explore hands-on science worry-free.
UNLEASH YOUR INNER GEOLOGIST - Crack open 5 jumbo, tennis ball-sized natural geodes bursting with stunning crystals inside.
TRUSTED QUALITY FROM NATIONAL GEOGRAPHIC - Premium materials and expert design ensure a top-tier STEM experience backed by exceptional service.

The National Geographic Break Open 5 Jumbo Geodes Kit offers an immersive STEM experience with five large, natural geodes (tennis ball-sized) that reveal dazzling crystals when cracked open. Designed for kids 8+, it includes safety goggles, three display stands, and a full-color educational guide, combining hands-on fun with scientific learning. Perfect for young explorers eager to uncover Earth's hidden gems while proudly displaying their discoveries.

Specifications

ASIN	B0B69N5W93
Amazon 売れ筋ランキング	おもちゃ - 47,473位 ( おもちゃの売れ筋ランキングを見る ) 実験・科学 - 1,231位
GTIN (Global Trade Identification Number)	00810070621544
UPC	810070621544
おすすめ度	4.2 5つ星のうち4.2 (1,189) var
お客様の年齢層	子供
サイズ	ワンサイズ。
サブブランド	National Geographic
テーマ	地球科学
ブランド名	Blue Marble
メーカー名	JMW Sales, Inc.
メーカー型番	NGGEOJUM5
メーカー推奨年齢	8歳以上
ユニット数	1.0 個
同梱商品	ジオード。
商品の入り数	1
商品の重量	2.61 キログラム
商品本体サイズ	31 x 28 x 9.8 cm
商品種別	地球科学キットクリスタル付きプレミアム特大ジオード5個付き
型番	NGGEOJUM5
教育目的	STEM
材質タイプ	ジオード。
組み立て式	いいえ
言語	英語

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₨80971

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered 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 Sri Lanka.

Secure transaction

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