“Obsidian glass, that is a volcanic glass, forms when lava is very quickly cooled, for example, where it enters into water,” Giordano added. However, the pyroclastic flows, composed of fast ...

Heat from the eruption in A.D. 79 was so intense that it vitrified the brain tissue of one unfortunate Herculaneum resident, ...

A man's brain was partly turned into glass after Mount Vesuvius erupted. Researchers discovered dark fragments resembling obsidian in the skull of a man in the ancient settlement of Herculaneum. Along ...

But, he adds, “unlike obsidian, the glassy remains were extremely ... The next question was how the man’s brain turned to glass in the first place, says Guido Giordano, a volcanologist at ...