Nat' Geo Break Your Own Geode

Geodes are naturally forming volcanic rocks that contain amazing crystal formations inside.  Crack them open and discover beautiful minerals! National Geographic selects only the best geodes collected from multiple mines around the world, so you?re guaranteed to find fascinating crystals  Kids love these treasure-filled rocks! Encourage an appreciation of nature and geology in your child with this extraordinary science kit  Learn all about geodes and minerals with the full-color educational learning guide included