Photos of rocks with vesicles, rounded holes in volcanic rocks due to the presence of bubbles of a vapor phase when the rock was solidifying. Click on any photo for a larger image. Some of the larger images may be on other web sites and will open in a new window.

Vesicular Olivine Basalt

veshs_001. Closeup photo of an outcrop of an olivine phyric basalt, Mauna Loa Volcano, Hawaii, USA.

Vesicular Olivine-Augite Basalt

veshs_002. Closeup photo of an outcrop of an olivine-augite phyric basalt, Haleakala Volcano, Maui, USA.

Oxidized Vesicular Basalt

veshs_003. Closeup photo of the oxidized surface of a vesicular basalt, Kilauea Iki, Hawaii, USA.

Elongated vesicles

veshs_004. Elongated vesicles at the base of a basalt lava flow, Kilauea Volcano, Hawaii, USA.