"Taking one of these fragments, it had a black appearance and shiny surfaces quite similar to obsidian, a natural glass of ...
CNN on MSN14d
A young man’s brain turned to glass during the eruption of Mount Vesuvius. Scientists say they have figured out how“Obsidian glass, that is a volcanic glass ... the brain from “complete thermal breakdown,” allowing fragments of the unique organic glass to form. Unlike pyroclastic flows, which hug the ground, an ...
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