Taken by themselves, geodes are gorgeous, with the insides lined with crystals that add a sense of beauty and wonder to the rocks, and they become even more amazing when they are dinosaur eggs, as was ...

Amethyst geodes—some stretching 5 m long—dot the ancient lava flows of Uruguay’s Los Catalanes mining area. The geodes contain calcite, colorless quartz, and agate, another quartz mineral. Large ...

People view the 12-foot tall amethyst geode from Uruguay hosted at the American Museum of Natural History in New York. Thanks to geological surveys and detailed chemical analysis, a team of ...

Wild Kyle joined Paleo Chris and Bri to cut open a collection of Florida agate geodes and nodules, hoping to reveal the ...

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 ...

Geodes have long captured the attention of geologists and the imagination of artists. Formed over many years, minerals such as quartz and amethyst dissolve and seep into air pockets and volcanic ...

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 ...