Discover · Chihuahua, Mexico
Geode
A geode is a hollow rock lined with crystals, formed over millions of years as mineral-rich water deposits grow inside a sealed cavity.
What's inside a geode?
Geodes hide sparkling crystal cavities — often quartz or amethyst — revealed only when the rock is cracked open.
How do geodes form?
Mineral-rich water deposits crystals layer by layer inside a hollow volcanic or sedimentary cavity over millions of years.
Can I crack open a geode at the Expo?
Yes — kids and adults can crack their own geode at the show and take home the crystals hidden inside.