Fulgurite is a natural vitrified tube formed by lightning strikes on sand soils.

---

Size: 5220px × 3372px
Photo credit: © José María Barres Manuel / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: close-, fulgurita, fulgurite, geology, horizontal, lechatelierite, lightning, natural, quartz, sample, sand, tubes, vitrified