Glad You Asked: What are fulgurites and where can they be found? - Utah Geological Survey
fulgurite - glass made by lightening | Fulgurite, Petrified lightning, Minerals and gemstones
What Really Happens When Lightning Strikes Sand | Discover Magazine
What Happens When Lightning Strikes Sand Like In Sweet Home Alabama - HubPages
Fulgurites: The Power of Lightning (U.S. National Park Service)
What happens when sand is struck by lightning? | Fulgurites Explainer
What is fulgurite? | The Weather Guys
What's In The Box? Lightning Round – Rice Northwest Museum of Rocks & Minerals
Is This a Photo of Sand After Being Struck By Lightning? | Snopes.com
Petrified Lightning and Fulgurite! When the Ground Turns to Glass
The Earth Story - Fulgurite: fossilised lightning strikes Fulgurites form when lightning strikes the ground and almost instantaneously melts the silicate minerals it contacts. The melt then rapidly cools leaving a hollow