The geological history that led to the formation of giant crystals and a 36-foot geode has been revealed by scientists. By looking at the abandoned mine where the geode of Pulpí was found, they ...

“To me, the giant crystals of Naica, or the geode of Pulpí, ... Perhaps because of this difficulty, not everything about the Pulpí Geode’s story is crystal clear. 0:51.

How to cook a violent Viking stew—and a giant geode. Scientists discover recipes for some of the world’s toughest concoctions—and a way to burn off 6,000 calories without strenuous activity.