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!