Ключевые слова: abstract, anthracite, backdrop, background, black, black coal, blind coal, burning, carbon, charcoal, clean, close, close up, closeup, coal, coal pile, coal storage, copy, cost, dark, deposit, dirty, energy, environment, extraction, fire, fossil, fuel, hard coal, heat, industry, lump, macro, material, mine, miner, mineral, object, power, product, resource, rock, shiny, smoke, stone, structure, texture, top, warming, winter,