After hitting the geode motherlode last year in Missouri, it's time to crack them open! Being stuck at home during the ...

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 ...

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 ...

Dig into Colorado’s Western Slope for geodes, quartz, jasper, and rockhounding adventures worth the dusty drive.

Kyle, Paleo Chris, and Bree cut open a batch of Florida agate geodes to see what is hidden inside. Some rocks look plain from ...

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 ...

Millions of years ago, in present-day Uruguay, gas bubbles became trapped in magma as it hardened to rock; over time, these cavities morphed into amethyst-quartz-lined geodes. A dazzling ...

Hand holding a purple geode in a green garden - FotoHelin/Shutterstock This guide highlights accessible, legal locations where enthusiasts can safely hunt for geodes and geode-like formations and take ...

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