2.7" Fulgurite Petrified Lightning Strike Glass Sahara Desert Algeria Phytosaur Tooth The shape of these tracks

The shape of these tracks is determined by the movement of the trilobite's biramous appendages

The Frasch process made mining in these difficult geological conditions economically viable

known from the Judith River Formation in Montana and the Oldman Formation in Alberta

‭ ‬neural spines

2.7" Fulgurite Petrified Lightning Strike Glass Sahara Desert Algeria Phytosaur Tooth The shape of these tracksLocation: Sahara Desert, Algeria Weight: 0. 3 Ounces Dimensions: 2. 7 Inches Long, 0. 8 Inches Wide, 0. 4 Inches Thick The Item pictured is the one you will receive. Fulgurite is a type of natural glass formed when lightning strikes sandy soil or sand dunes, creating a fascinating geological phenomenon. The extreme heat produced by the lightning bolt fuses sand grains, forming hollow tubes or branching structures known as fulgurites. Also referred to