When lightning strikes sand, the sand melts. When the melt solidifies, it shows the path that the lightning took through the ground. The rocks that form this way are rare – they’re called fulgurites.
Bryn Mawr Arndt Collection, Sample #65
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When lightning strikes sand, the sand melts. When the melt solidifies, it shows the path that the lightning took through the ground. The rocks that form this way are rare – they’re called fulgurites.
Bryn Mawr Arndt Collection, Sample #65