Vergasovaite grain from the Treshina fumarole, 2nd scoria cone, Northern Breakthrough, Tolbachik
[photo / collection: Brent Thorne]
Vergasovaite
Vergasovaite grain from the Treshina fumarole, 2nd scoria cone, Northern
Breakthrough, Tolbachik
[photo / collection: Brent Thorne]