Ключевые слова: abstract, amethyst, art, background, beautiful, beauty, birthstone, color, colorful, crystal, decoration, detail, gem, gemstone, geodes, geological, geology, jewel, jewelry, macro, magenta, magical, material, mineral, mineralogy, nature, paint, pattern, planet, precious, purple, quartz, rare, rock, science, semiprecious, shine, shiny, stone, structural, structure, texture, textured, violet,