People view the 12-foot tall amethyst geode from Uruguay hosted at the American Museum of Natural ... [+] History in New York. Thanks to geological surveys and detailed chemical analysis ...
Its rough exterior might not catch the eye, but what lies within surely will. Geodes are one of nature’s most spectacular treasures, offering a glimpse into the geological processes that shape ...
Geodes are hollow rock formations often with quartz crystals, such as amethyst, inside. Amethyst geodes in Uruguay have been found in cooled lava flows, which date from the original breakup of the ...