Petrified Lightning - 2.647" Saharan Fulgurite rockinaboxcavebear Pterosaurs were the first vertebrate

Pterosaurs were the first vertebrate animals to evolve into flying creatures

these flood basalt eruptions covered over 7 million square kilometers (2

From firmaments and flat Earths to low-orbit illusions

recovered from Utah's Wheeler Shale Formation

Petrified Lightning - 2.647" Saharan Fulgurite rockinaboxcavebear Pterosaurs were the first vertebrateAbove: 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 2. 647" fulgurite collected in the Sahara Desert. Originally