As with other forms of obsidian, rainbow obsidian is both rock and glass. However, this isn’t the same kind of glass that’s used in your nice new French doors. It’s far more badass ...

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.

Volcanic eruption buried ancient Pompeii and Herculaneum Victims were preserved in sudden death in the two cities Man was exposed to heat of 510 degrees Celsius (950°F) Feb 27 (Reuters) - It was ...

“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 ...

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 ...

A man, thought to be the custodian of a religious group, was believed to be in his bed asleep, when a super-hot ash cloud hit ...