mineral
Fulgurite
Lechatelierite (Fused Silica)
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale, grayish-white or tan color, glassy to vitreous luster, amorphous crystal structure, brittle texture.
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Physical properties
Hardness of 6-7 on Mohs scale, grayish-white or tan color, glassy to vitreous luster, amorphous crystal structure, brittle texture.
Formation & geological history
Formed when lightning strikes sand or soil, instantly melting and fusing silica at temperatures exceeding 1,800 degrees Celsius.
Uses & applications
Collected by enthusiasts, used in scientific research studying ancient lightning strikes and atmospheric conditions.
Geological facts
Often called 'fossilized lightning', these hollow tubes preserve the path of the electrical discharge.
Field identification & locations
Found in sandy deserts and beaches worldwide, identifiable by its tubular, glassy, fused-sand structure.
