Ключевые слова: alloy, basic material, black, brilliant, chemical element, chemistry, chromatic, chrome, chromium, cibdelophane, cobalt, cobaltite, collection, cut out, cutout, expensive, extraction, galena, gemstone, geological, geology, gray, grey, haplotypite, high purity, ilmenite, industrial, industrial metal, iron, iron ore, isolated, little, luxury, macro, manaccanite, manganese, material, metal, metallic, mineral, mineral ore melter, mineralogical, mineralogy, mining, native, natural, nature, nickel, nugget, object, ore, pebble, piece, pure, purity, raw, raw material, rock, rough, sample, shine, silver, silver mine, skutterudite, specimen, stone, structure, sulfide, surface, texture, titanic iron, titanioferrite, titanite, titanium, unpolished, very pure, white, white background,