Ключевые слова: black, blue sky, commodity, concrete, construction, conveyor belt, dirty, dust, energy, geology, global warming, gravel, gray, grey, heaps, heavy, industrial, industrialization, industry, machine, machinery, material, mine, mining, moving, natural, ore, piles, platinum, platinum ore, pollution, pollution industry, processing, raw materials, refining, rock, rough, sand, silo, site, sorting, steel, stone, stones, storage, texture, transportation, transporting, transporting ore, work,