Ключевые слова: anthracite, background, basalt, black, block, burn, carbon, charcoal, coal, combustible, combustion, cut, dark, dirty, energy, environment, extraction, factory, fossil, fuel, graphite, gravel, heat, icon, illustration, industrial, industry, iron, lump, material, mine, miner, mineral, natural, nugget, ore, piece, pile, power, production, resource, rock, stone, texture, work,