One if the most fascinating things I have seen in mylife was a landslide down the face of a Lantern Hill in Connecticut in the dead of night.
The Hill is made of a silica rock which displays piezoelectric property’s. Any how, as the rockslide occured it produced blue arcing electric flashing and the entire hill was washed with the blue light as the wave of stone washed down the hill.
Fascinating effect
BTW as we camped at the top of of the hill we built a campfire of wood because striking silica rocks for warmth was worthless
Were you washing something when you wrote this?