The three-meter tall amethyst geode - a ... at the mine in Uruguay, and this was then secured in her own steel container and shipped out of Brazil to Brisbane, Australia. Following the 1600km ...

Amethyst geodes in Uruguay have been found in cooled lava flows, which date from the original breakup of the supercontinent Gondwana around 134 million years ago. However, their formation has ...

northern Uruguay. Along with Ametista do Sul in southern Brazil, these regions are the world’s leading mining districts for gems which come from volcanic lava, such as amethyst and agate geodes.