Gem Center USA has been mining geodes since 1966 (view Choyas mine pictures). We guarantee that these geodes will have a hollow pocket inside. We also offer pre-cracking service for a small fee. We use a special tool to snap them cleanly in half. You can break your own geode by placing it in a sock and lightly tapping it with a hammer. Be careful and always use protective eyewear (safety glasses), adult supervision is required, recommended for children ages 8 and up.

Geodes were once bubbles in lava. Over time mineral rich thermal waters penetrate the bubble as the water cools crystals begin to form within. The type of crystal that forms inside of a geode is dependant on which minerals penetrate the bubble at the time of formation. In the case of the Las Choyas Geodes (aka Coconuts), a vast amout of different minerals were present during formation making it difficult to predict what crystals you can find inside. It's a surprise every time one is opened.