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National Geographic Break-Open Geodes- 10 pc


Break open these rocks to reveal amazing crystals inside!

Skill Development:
Ease of Use:
Age: 8+ years

Read our expert reviews →


Break open these premium geodes to reveal the amazing crystal treasure inside! Our geodes are hand selected to bring you the best variety available. They make a great STEM activity that’s the perfect gift for girls and boys! Discover crystal treasure inside these premium geodes from National Geographic! Geology doesn’t get more exciting than breaking open rocks to find crystal treasures inside! Geodes can form with a variety of crystals inside and National Geographic strives to bring you the best variety available. This earth science kit provides a hands-on science experiment that you and your children are guaranteed to love. It includes 10 high-quality, crystal-filled geodes; safety goggles; 3 display stands; and a full-color Learning Guide. Geodes are the perfect activity for energetic boys and girls! The included display stands allow them to showcase the crystals they find and can serve as the first specimens in a rock collection. Our full-color Learning Guide teaches many amazing facts about geodes!

What our testers said

“Whoa, I saw sparks!” – Girl ages 9

“They really are hollow! So that’s how the crystals grow inside.” – Girl aged 8

What our experts think

Our testers were excited by the prospect of cracking the rocks to expose the potential geodes and what type of crystals they would find inside. A hammer and chisel are required in addition to the contents of this kit and the children drawn to this activity were thrilled to use these tools. With adult supervision, they were engaged and motivated to successfully crack the geodes and study the crystals inside. The learning guide is a good introduction to the different types of geodes, how they form, and other related rocks. While engaged in this project, the children can develop and hone fine motor skills for tool use and executive functioning.

Skills developed

– Supports fine motor skill development

– Helps executive functioning

– Encourages language-vocabulary