Silver paua, Haliotis australis

Koro-riwha, pāua-rore, silver paua, Haliotis australis.
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Many mollusc shells gain their shiny, colourful surfaces from aragonite, which is also known as nacre or mother-of-pearl. Each layer of a shell is formed when the animal secretes crystals of calcium carbonate from its outer layer, or mantle.

Pāua are one of the most vibrantly coloured of the Haliotis species, and one of Aotearoa’s best known gastropods. The algae and seaweed they graze on give pāua their lustrous colours.
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