Petrified Lightning - 2.545" Saharan Fulgurite chalcedony Ammolite is a fossil gemstone

Ammolite is a fossil gemstone composed of ammonite shells that have undergone a process of mineralization preserving and intensifying the natural aragonite in the shell

Medium - 1" to 1

Early research on the SNC group showed them having a younger age and different composition than most other meteorites

glass-topped bead composed of fine-grained dust extracted from the Allende meteorite

52" fossil pair from the Tethys Ocean

Petrified Lightning - 2.545" Saharan Fulgurite chalcedony Ammolite is a fossil gemstoneAbove: 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. 545" fulgurite collected in the Sahara Desert. Originally