Close-up view of a porous black volcanic rock on a white background
Schlüsselwörter
lava rock,
basalt,
obsidian,
pumice,
scoria,
geology,
mineral,
stone,
natural,
texture,
black,
dark,
porous,
rough,
surface,
macro,
closeup,
isolated,
white background,
element,
material,
earth science,
solid,
fragment,
specimen,
geologic,
formation,
igneous,
earth,
natural history
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