Petrified Lightning - 1.78" Saharan Fulgurite toothandclaw gravity should separate these materials

gravity should separate these materials due to their varied densities

but they said

Above: The Front of the Specimen Card

Less than a year after the Golden Gate Bridge opened to the public

It dates to the early Eocene period

Petrified Lightning - 1.78" Saharan Fulgurite toothandclaw gravity should separate these materialsAbove: 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