Petrified Lightning - 1.78" Saharan Fulgurite air-and-space This specimen is an individual

This specimen is an individual Pterosaur tooth

For nearly a decade

and carving caves and tunnels in solid rock

by Donald R

Thousands of citizens from East and West Berlin met at the wall and smashed it down with sledgehammers

Petrified Lightning - 1.78" Saharan Fulgurite air-and-space This specimen is an individualAbove: Front of the Specimen Card. When lightning strikes dry sand, the intense heat melts and fuses the silica creating tubes of rough glass called fulgurites. The process happens quickly, often trapping molecules from the surrounding atmosphere inside the walls of the impact tube. These natural time capsules allow scientists to study the composition of ancient climates. This specimen is a 1. 78" fulgurite collected in the Sahara Desert. Originally