Ключевые слова: amethyst, background, black, collect, colorful, colourful, crystal, deposit, detail, druse, galena, galenite, gem, gemstone, geology, industry, isolated, jewel, lead, light, ligth, metal, mineral, mining, natural, nature, nickel, object, ore, pink, precious, purple, pyrite, quartz, resource, rock, rough, science, semiprecious, set, shot, silica, silicate, souvenir, sparkle, specimen, stone, violet, white, yellow,