The Entre Rios mining district produces a large volume of amethyst geodes in underground mines and is part of the world class deposits in the Paraná volcanic province of South America. Two producing ...

Join me as I showcase my best rockhounding finds, featuring stunning agates, glittering geodes, vibrant amethyst crystals, glowing yooperlites, and beautiful calcite specimens. This collection ...

In this video my friends PaleoCris, and Rick (digdivediscover) team up with me to find Agatized Coral Geodes in a river in Georgia! This trip was nostalgic for me, because I grew up about 45 minutes ...

Reduced Tier 1; Cordillera Flow; Paraná Volcanic Province; Guarani Paleoaquifer; hydrothermalism; amethyst-geode mineralization This study focused on the Cordillera Flow along the border of BRA and UY ...

MOOSE LAKE, Minn. — On a cold, blustery day in April, Bel and I headed to the North Shore to meet up with a rock star named Taylor, or as he’s known on social media, “Agate Dad.” Taylor is famous in ...

The Idaho Falls Gem and Mineral Society will be holding its 59th Annual Gem and Mineral Show next weekend at the Bonneville County Fairgrounds south of Sandy Downs. It will feature games, prizes and a ...

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 ...

There's something distinctly mysterious and cool about geodes... rocks hidden in plain sight that contain a astonishing array of crystals within, just waiting to be discovered. There are a lot of ...

University of Göttingen researchers uncovered that Uruguay’s amethyst geodes formed from low-temperature groundwater fluids, proposing a groundbreaking formation model. New research from the ...

Göttingen University researcher Fiorella Arduin Rode working in open pit mine of the study area, Los Catalanes mining district, northern Uruguay. Along with Ametista do Sul in southern Brazil, these ...