These geodes began life 44 million years ago, as bubbles in Lava! Las Choyas Whole Unopened Geodes, also known as the Coconut Geodes, come from Chihuahua Mexico where they are mined from old volcanic vents. They tend to have many different types of crystals inside (Clear Quartz, Smokey Quartz, and sometimes Amethyst) making it a surprise every time you open one.