SiO
hydrothermal vent- geoheated water deposit

hydrothermal vent- geoheated water deposit

Agate formation

Agate formation

Hollow stalactites in Icelandic cave

Hollow stalactites in Icelandic cave

vents !

vents !

Mount Merapi in Inonesia

Mount Merapi in Inonesia

visitheworld:

by Exodus Travels - Reset your compass on Flickr.
Salt and sulphur geysers at Dallol volcano - Danakil desert, Ethiopia.

visitheworld:

by Exodus Travels - Reset your compass on Flickr.

Salt and sulphur geysers at Dallol volcano - Danakil desert, Ethiopia.