Discover the excitement of real geology at home with a natural crack-your-own quartz geode. Geodes form when crystallized mineral deposits grow inside tough outer rock shells, creating a hidden interior that isn’t revealed until the geode is opened. Each geode offers a one-of-a-kind surprise—no two are exactly alike.
Every specimen is approximately fist-sized and, once opened, reveals sparkling sugary quartz crystals lining the interior cavity. To uncover your geode, place it on a sturdy surface and gently tap with a hammer (a chisel can help guide the split) until it cracks open. Safety goggles are required during opening.
The thousands of tiny quartz crystals are especially striking when examined up close with a hand lens or magnifier, making this specimen perfect for observation, display, or educational exploration. Crack-your-own geodes are popular for rock collections, crystal enthusiasts, classroom demonstrations, science activities, and unique gifts.
The thousands of tiny crystals are best seen with a magnifier like our Cornerstone Hand Lens.
Each geode is guaranteed to be hollow and crystal-filled. If yours arrives without crystals inside, we’ll happily replace it—no hassle.
A hands-on way to experience real quartz crystal formation, straight from nature.
