G53 - Top Large Outstanding 22.8cm Fulgurite ("Petrified lightning") Collected in Algeria NWA Chondrite Polished Sections large and intact

large and intact

Lochmann 1944 (trilobite)

Chondrichthyes - Rajiformes - Rhinobatidae

Specimens prepared exquisitely

Some cephalons of Nankinolithus can also be observed in the same matrix

G53 - Top Large Outstanding 22.8cm Fulgurite ("Petrified lightning") Collected in Algeria NWA Chondrite Polished Sections large and intactFulgurites are natural tubes, clumps, or masses of sintered, vitrified, and or fused soil, sand, rock, organic debris and other sediments that can form when lightning discharges into ground. They can therefore be referred to as petrified lightning. They are classified as a variety of the mineraloid lechatelierite, although their absolute chemical composition is dependent on the physical and chemical properties of the usually granular crystalline