Some of the world's largest amethyst geodes come out of Artigas, Uruguay. The earth beneath this region is uniquely suited to producing amethyst. But other than size, what qualities do miners look ...

This could significantly improve exploration techniques and lead to sustainable mining strategies in the future." More ...

The three-meter tall amethyst geode - a hollow rock filled with amethyst ... The Empress had a special crate constructed tightly around her, at the mine in Uruguay, and this was then secured ...