Flow texture in obsidian, a dark volcanic glass. Obsidian Dome, California, USA.

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Size: 4287px × 2848px
Photo credit: © Gabbro / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, black, california, dark, flow, geology, landscape, nature, nevada, north, obsidian, outdoor, rock, rocks, science, sierra, texture, travel, usa, volcanic