2.1" Fulgurite Petrified Lightning Strike Glass Sahara Desert Algeria Goulmima Pterosaur bones were hollow and

Pterosaur bones were hollow and air-filled

sulfide-rich conditions allowed pyrite to gradually replace the original plant tissues

They were the first animals known to possess a hard exoskeleton

tabulate corals (creating mounds

2.1" Fulgurite Petrified Lightning Strike Glass Sahara Desert Algeria Goulmima Pterosaur bones were hollow andLocation: Sahara Desert, Algeria Weight: 0. 3 Ounces Dimensions: 2. 1 Inches Long, 1. 2 Inches Wide, 0. 5 Inches Thick The Item pictured is the one you will receive. Fulgurite is a type of natural glass formed when lightning strikes sandy soil or sand dunes, creating a fascinating geological phenomenon. The extreme heat produced by the lightning bolt fuses sand grains, forming hollow tubes or branching structures known as fulgurites. Also referred to