Petrified Lightning - SOLD 2.780" Saharan Fulgurite rockinaboxsannine 446" crinoid fossil plate that

446" crinoid fossil plate that dates to about 323

347" mission-flown nose landing gear tire fragment from the Space Shuttle Columbia (OV-102)

Above: The backside of a Megalodon tooth contrasted with the Medium Otodus

071" fossil Ginkgo cranei leaf from the Sentinel Butte Formation in North Dakota

06" polished Phylloceras fossil from Madagascar

Petrified Lightning - SOLD 2.780" Saharan Fulgurite rockinaboxsannine 446" crinoid fossil plate thatAbove: 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. 780" fulgurite collected in the Sahara Desert. Originally