Break Your Own Geode Crystal, Quartz Cluster, Break Open a Crystal, DIY Geology, Druzy Quartz, Agate Cluster Surprise, Fun Kid Gift, Science. Inspired by customer requests, our crack-your-own geode crystal is here! You never know what is inside, it can be quartz, amethyst, agate or calcite. Capture the moment as you uncover your geode to see if you contained an amethyst crystal, quartz crystal, dolomite or some other unknown stone. DIY- Crack your own geode! These geodes are a pure mystery! Size varies as picture shows, you get a random piece! They come whole, as pictured, and ready for you to break. They can break by gently using pressure with a hammer or chisel to reveal the hidden gems inside! This is for one (1) Crystal Geode.