Close-up of an abalone shell (Haliotis) with iridescent nacre layers displaying a range of vibrant colors. The surface exhibits a swirling pattern of blues, greens, and pinks, giving it a pearly, opalescent sheen. The texture is smooth yet undulating, forming natural ridges and curves. The lustrous appearance is due to the microscopic layering of calcium carbonate, which refracts light. The intricate design is both aesthetically pleasing and functionally significant, providing strength and protection to the mollusk.
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