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 ...
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Geological surveys shed light on the formation mystery of Uruguay's amethyst geodesAmethyst 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 ...
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