Petrified Lightning - 1.751" Saharan Fulgurite showcase2025sale30 80" polished Cleoniceras fossil from

80" polished Cleoniceras fossil from Madagascar

This is an authentic fragment of concrete from Alcatraz Penitentiary

37 inches in length

An informational photo card that serves as a certificate of authenticity is also included

The Space Shuttle Endeavour (OV-105) was the final of the orbiters to be built

Petrified Lightning - 1.751" Saharan Fulgurite showcase2025sale30 80" polished Cleoniceras fossil fromAbove: 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. 751" fulgurite collected in the Sahara Desert. Originally