The three-meter tall amethyst geode - a hollow rock filled with amethyst ... and this was then secured in her own steel container and shipped out of Brazil to Brisbane, Australia.

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 ...

In a recent article in Miner Deposita, researchers presented a comprehensive study of the amethyst and agate geodes in the Los Catalanes Gemmological District of Northern Uruguay. This region is ...