Ключевые слова: amethyst, background, black, close, closeup, collection, color, crystal, crystalline, dark, decorative, gem, gemmological, gemmology, gemological, gemology, gemstone, geological, geology, isolated, jewelry, little, macro, material, mineral, natural, object, ornamental, pebble, piece, pink, quartz, raw, rock, rose, rough, sample, semiprecious, shooting, small, specimen, stone, structure, surface, texture, textured, translucent, transparent, up,