Polished shell of an abalone (Haliotis sp.) gastropod, revealing the nacre (mother of pearl). Nacre is an iridescent material produced by some molluscs to form the inner layer of shells or pearls. It is composed of aragonite, a form of calcium carbonate, and typically serves to protect the soft tissue of molluscs. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Douwma, Georgette |
Bildgröße: | 5118 px × 3416 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |