You’re referring to a Fulgurite, am I correct? Fossilized lightning. I’ve seen and actually touched some. Very fragile. Something that lasts 1/10,000th of a second and 5 times hotter than the sun’s surface temperature. Literally vaporizes the soil and glassifies it. Usually found attached to underground utility lines. I’ve even had two close calls, nearly getting hit. The flash is very bright and burns. I saw nothing but white for a few days. I was even knocked back several feet. sounds crazy, but I love storms. (shoulda been a storm chaser) how can you outrun something that travels at 184,000 miles per second? The same equivalent that light from the sun reaches earth in 8 minutes. (I’m such a dork) 🙂