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Keywords:Swinton, coral, sea, seas, water, coral reef, reef, ocean, oceans, calcareous alga, algae, shell, shells, shell fragments, aragonite, deposits, deposit, crustaceans, agitated water, shallow, shallows, coral polyps, exoskeletons, carbonate, Cnidaria, cluster, polyps, Polyp, stony corals, marine water, marine, Seawater, tiny animals, colonies, secreted, structures, Calcium carbonate, ecosystems, underwater, Coral, glow, backlit, translucent
