Petrified Lightning - 1.730" Saharan Fulgurite rockinaboxphylloceras 910" fossil Ginkgo cranei leaf

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

We are pleased to offer it once again as a single item

Access to this material is exceedingly rare

50" on the longest edge

By inserting a round bead into a mollusk

Petrified Lightning - 1.730" Saharan Fulgurite rockinaboxphylloceras 910" fossil Ginkgo cranei leafAbove: 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. 730" fulgurite collected in the Sahara Desert. Originally