Crack open an unassuming stone, and you might just uncover a little conclave of crystals within. Their walls are glittering with quartz, amethyst, or calcite, protected by a hard shell that was shaped ...

Gorgeous geodes have been popping up on cracks in walls and in alleyways all over the world, and they aren’t the result of millions of years of pressure and crystalization. Rather, street artist Paige ...

Artist Paige Smith (AKA “A Common Name”) started Urban Geodes by filling cracks in downtown Los Angeles with these geodesic shapes. They’re made from paper and spray paint or resin. The project has ...

Amethyst is a violet variety of quartz which has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz ...