Does Sand Make Glass When Struck by Lightning?

When lightning hits a sandy beach, it creates otherworldly glass sculptures known as fulgurites or “petrified lightning.” Find out how to spot them on your next beach vacation.

Can lightning on sand make glass?

When it hits a sandy beach high in silica or quartz and the temperature goes beyond 1800 degrees Celsius, the lighting can fuse the sand into silica glass. ... Because glass can resist much of what Mother Nature throws at it, a piece of petrified lightning could stay below ground for decades, centuries even.

What is it called when lightning turns sand into glass?

Fulgurites are natural tubes or crusts of glass formed by the fusion of silica (quartz) sand or rock from a lightning strike. Their shape mimics the path of the lightning bolt as it disperses into the ground. All lightning strikes that hit the ground are capable of forming fulgurites.