Petrified Lightning - "Fulgurite"


When a lightning bolt hits the ground, it’s hotter than the sun. Hot enough that it can melt and fuse sand, silica, and some soils.
Fulgurite left behind by lightning is a veiny, organic looking artifact made of sand that’s been superheated and then quickly cooled. It’s a hollow tube in most cases and the inside extremely similar to glass as a result of cooling so rapidly.[source]

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