collection from specimens of various coal minerals isolated on white background

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Size: 5800px × 5685px
Photo credit: © Valery Voennyy / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: anthracite, background, bitum, bituminous, black, bone, bone-coal, brown, carbon, carbonaceous, close, coal, coalbone, cobble, collage, collection, gemmological, gemmology, gemological, gemology, geological, geology, gray, isolated, jet, lignite, macro, material, metamorphic, mineral, natural, ore, pebble, piece, raw, rock, sample, schist, sedimentary, set, shale, slaty, specimen, stone, surface, texture, textured, white