Ключевые слова: according to, blue, bright, construction, crystals, daylight, deposits, digging, drills, earth, environment, excavation, exploration, extraction, facilities, gear, gemstone, geology, hard, harvesting, heavy, industry, laboratory, laborers, landscape, machinery, manual, mineralogy, minerals, mining, mountain, nature, outdoor, quarry, quarrying, resource, rocks, rugged, safety, shimmering, site, skirt, stones, teamwork, tools, transport, valley, valuable, work, workers,