fulgurite

Meanings

1. 1
   noun

   a glassy, often branching tube or crust formed when lightning fuses sand, soil, or rock

   The lightning strike left a fragile fulgurite extending through the dune sand.

Formed from Latin fulgur, 'lightning,' + the mineral suffix -ite. The name refers to material fused or vitrified by the intense heat of a lightning discharge.

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External links

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