Undersea coral pictures desktop wallpaper

A set of desktop wallpapers of underwater coral pictures is shared with everyone. Wallpaper size: 3840x2160. Coral polyps are automatically fixed on the calcareous remains of ancestor corals in the white larval stage. Coral is the shell secreted by coral polyps. The chemical composition of coral is mainly CaCO3 (Calcium carbonate), which exists in the form of aggregates of microcrystalline calcite.