In an unusual image, the NASA/ESA Hubble Space Telescope has captured a rare view of the celestial equivalent of a geode — a gas cavity carved by the stellar wind and intense ultraviolet radiation ...

In 2019, Michal Mael brought a massive geode to the Kino Gem Show. It weighed thousands of pounds and had a heavy door attached — for everyone who has ever dreamed of being encapsulated by amethyst.

Real geodes are handball-sized, hollow rocks that start out as bubbles in volcanic or sedimentary rock. Only when these inconspicuous round rocks are split in half by a geologist, do we get a chance ...