Imagine walking through a dusty, arid landscape when you stumble upon a seemingly ordinary rock. Its rough exterior might not catch the eye, but what lies within surely will. Geodes are one of ...

A backgammon set with board and pieces, also uncovered from Australia. The game is made with highly polished slabs of ...

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 ...

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 ...

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 ...