Ключевые слова: agate, background, banded, beautiful, black, blue, brown, chalcedony, circle, closeup, colours, concentric, curve, decoration, decorative, gemstone, geode, horizontal, isolated, layer, mineral, natural, nature, nobody, pattern, polished, ring, round, sample, semiprecious, silica, slice, specimen, stone, stripe, structure, surface, texture, textured, white,