pumice rough textured volcanic mineral

navigate by keyword : abrasive black bubbles closeup detail earth ejected eruption extrusive foamy freezes geology gray igneous isolate isolated lava lightweight magma material mineral natural pebble piece pore porous pumice rock rough sample specimen stone surface texture textured volcanic white

$Close-up of a porous, textured brown volcanic rock, possibly pumice. The rock\'s Royalty Free Stock Photo$

$Irregularly shaped porous rock with a rough, textured surface. It\'s predominantly dark Royalty Free Stock Photo$

Pumice rough textured volcanic mineral isolated on white with shadow