Fulgerites - the beauty of geomorphology

Amazing picture on the  aggressively named 'I fucking love science' Facebook page of a fulgerite.  The description reads:

This is what happens when sand gets struck by lightning!

Fulgurites are natural hollow glass tubes formed in quartzose sand, silica, or soil by lightning strikes (at 3,270 °F), which instantaneously melts silica on a conductive surface and fuses grains together over a period of around one second. 
Photographed by Ken Smith.