Ключевые слова: background, battery, beautiful, black, closeup, crystal, decoration, explorer, factory, galena, gem, gemstone, geography, geology, industry, isolated, lead, machinery, macro, metal, mineral, mineralogy, mining, natural, nature, object, ore, precious, pyrite, quartz, radioactive, raw, resources, rock, romania, rough, sample, science, semiprecious, specimen, sphalerite, stone, strong, texture, white, yellow, zinc,