From the outside, a geode often looks like an ordinary rock. Crack it open, however, and you may discover a glittering crystal-lined chamber that has been forming for millions of years. But why are geodes hollow in the first place? Learn how these fascinating formations develop, why crystals grow inside them, and what determines whether they remain hollow or become completely mineral-filled.

Think size matters? Discover why tiny crystals can be just as powerful as big ones and how to find stunning gems online.

At jujujems, we use terms in our product descriptions that bring attention to the unique beauty of the item. Vugs and druzy go hand in hand