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 ...

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 ...

For just $10, you can be the jewel of the gem show, seated inside an amethyst geode that's 9 feet tall and 6 feet across. Oh, and since it's 6-feet-deep, they can also shut you inside the geode. This ...