"Then to be tipped with a perfect amethyst crystal on top is just so unique ... it could easily be worth several thousand dollars," he explained. "But I’ve decided to keep it for my own ...
The three-meter tall amethyst geode - a hollow rock filled with amethyst crystals - is the main attraction ... Mr Boissevain said the Empress of Uruguay was worth hundreds of thousands of dollars ...
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, a team ...
This arrangement results in those familiar faceted faces we admire in quartz clusters and amethyst points. The repeating pattern is called a crystal lattice and gives the material its ...