Geology doesn't get more exciting than breaking open rocks and finding crystal treasures! Geodes can form with a variety of crystals inside and National Geographic has searched the globe to bring you the best variety of geodes. This earth science kit provides a hands-on science experiment that you and your children are guaranteed to love. The hands-on National Geographic Break Open 2 Geodes kit includes premium geodes, safety goggles, a geode display stand, magnifying glass and learning guide.