Continued degassing from fumaroles at fissures
By Hawaiian Volcano Observatory
2018 (approx.)
Detailed Description
Continued degassing from fumaroles at fissures on Kīlauea Volcano's lower East Rift Zone produce native sulfur crystals when sulfur dioxide and hydrogen sulfide gases react and cool upon reaching the surface. The delicate sulfur crystals are 5–15 mm (0.2–0.6 in) long.
Sources/Usage
Public Domain.