Ключевые слова: abstract, anthracite, asphalt, background, bitumen, black, carbon, charcoal, clean, closeup, coal, combustible, crushed, dark, detail, energy, environment, extraction, filter, filtration, fossil, fuel, granular, granules, heap, horizontal, industrial, industry, macro, material, milled, mine, miner, mineral, natural, nature, pattern, pile, resource, rock, rough, shiny, small, stone, studio, surface, system, texture, textured, water,