Ключевые слова: amethyst, background, beautiful, beauty, black, brilliance, closeup, color, colorful, crystal, decoration, detail, drawing, druze, engineering, fossil, gem, geological, geology, healing, isolated, jewel, jewelry, luster, macro, magic, mineral, mineralogy, mining, natural, nature, pebble, pink, precious, purple, quartz, rare stone, raw, rock, rough, science, semiprecious, stone, structural, structure, texture, transparent,