Crack-Open Geode

Write a Review

Break open a plain-looking rock to see if there are quartz crystals inside! You provide a hammer or rock pick and help for young kids. Geodes are formed when mineral deposits build up inside volcanic or sedimentary rock "bubbles." Typical size is 1.5" to 1.75".

Note: Although not every geode contains crystals, they are still fun to break open and have interesting mineral deposits inside.