Tephra that was erupted from Halema‘uma‘u Crater, Kīlauea Volcano, HI
By Kīlauea
2008 (approx.)

Detailed Description
Tephra, including rock fragments, tiny spheres, and shards of volcanic glass, that was erupted from Halema‘uma‘u Crater, Kīlauea Volcano, Hawai‘i
Sources/Usage
Public Domain.