Graciela Sosa, Dr. Alfons van den Kerkhof. Credit: Fiorella Arduin Rode Amethyst geodes, in particular, contain violet quartz crystals, prized for centuries for their beauty and value. These rare ...

The three-meter tall amethyst geode - a hollow rock filled with amethyst ... of thousands of dollars and the damage would reduce its value. CCTV footage has been handed to local police but Mr ...

People view the 12-foot tall amethyst geode from Uruguay hosted at the American ... highlighting their scientific and natural value. The amethyst crystals are found in lava flows, which date ...

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 ...