Geode is a small cavity in rock lined with crystals or other mineral matter. Geodes grow over many thousands of years through the action of water flowing through rocks. Some geodes form in the cavities of limestone and shale. Others are found in places where gas has bubbled up through molten lava from volcanoes. When the lava cools and hardens, the bubbles leave cavities in which geodes form.
Inside the geode are many sparkling crystals that point inward. The crystals act like prisms, reflecting and refracting light to produce a dazzling display of colors. Nature is amazing, and one can never seize to marvel at the beauty around us.
So I made a cake that looks like an amethyst geode. We can't go wrong with a design like this, there are no mistakes. It was a chocolate cake with dark chocolate ganache and chocolate mousse filling. The geode part was rock candy of different colors.