heap with big boulders of black and glossy hard coal

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Size: 4227px × 2800px
Location: Strasshof, Austria
Photo credit: © Leopold Brix / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: bituminous, black, boulder, carbon, chunk, coal, energy, fossil, fuel, glance, gloss, hard, hunk, luster, material, natural, organic, pieces, pit, raw, resource, rock, sedimentary