Porphyritic volcanic rock with feldspar crystals and many vesicles. Burns, Oregon, USA.

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Photo credit: © Gabbro / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, american, basalt, crystals, feldspar, geology, igneous, oregon, porphyritic, rock, states, texture, travel, united, usa, vesicles, vesicular, volcanic