The 2.5 tons Empress of Uruguay is slightly less impressive after a tourist pinched a piece of the world's largest ... tall amethyst geode - a hollow rock filled with amethyst crystals - is ...

Amethyst is one of the most abundant crystals in the world, but the most prized pieces can cost almost a million dollars. Some of the world's largest amethyst geodes come out of Artigas ...

Northern Uruguay is home to one of the largest amethyst deposits in the world – but their formation ... could help find more of these impressive crystals in the future. "Understanding the ...