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Title
Fulgurites, where lightning has struck sand #244939470
Description
Fulgurites from the Latin fulgur, meaning `lightning`, commonly known as `fossilized lightning`, are natural tubes, clumps, or masses of sintered, vitrified, and/or fused soil, sand, rock, organic debris and other sediments that sometimes form when lightning discharges into ground. Fulgurites are classified as a variety of the mineraloid lechatelierite. Sand sculptures