Isn't this the strangest thing you've ever heard of?
"During Wisconsin's Peshtigo fire of 1871, for example, a cold front and twisting winds combined to form a fire tornado... It burned so hot, silica in the soil evaporated. When the thunderheads rained, the mineral fell in molten form. Survivors found birds—suffocated midflight by the fire's insatiable appetite for oxygen—encased in glass."
How Science Is Fighting Wilder Wildfires Than Ever Before | Popular Science, Nov 2015.
http://www.popsci.com/year-wildfire
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