Ключевые слова: anthracite, background, black, burning, carbon, central, coal, coke, coking, dark, dirty, earth, energy, exploitation, extract, extraction, fossil, fuel, hand, heat, holding, hot, human, industrial, industry, lignite, manufacturing, material, metal, metallurgical, mine, miner, mineral, nature, operations, ore, plant, pollution, power, quality, resources, shiny, stone, texture, underground, work, worker,