Millions of years of percolating water and geological dumb luck created Crystal Cave, an uncannily pristine chamber beneath a Lake Erie island. When a winemaker accidentally drilled into it, one of ...

The geode of Pulpí is an 11-meter hollow ovoid with crystal-paneled walls. It is like those familiar couplets of stone interiors covered with bright crystallites, but so large that several people can ...

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 ...

After hitting the geode motherlode last year in Missouri, it's time to crack them open! Being stuck at home during the quarantine, this makes for perfect timing to chill out and crack open some geodes ...