Commercial Top shell, top side & botto
Numéro d’image : 12395368
| The Commercial Top shell - Tectus niloticus - is a marine gastropod. This shell has had the outer layers removed revealing the nacre known as mother of pearl. It is an organic-inorganic composite material produced by some molluscs as an inner shell layer and which is also the outer coating of pearls. Strong, resilient, and iridescent it was the raw material used to manufacture buttons until the advent of plastics. The industry nearly wiped out the species. Nacre is found in some ancient lineages of bivalves, gastropods, and cephalopods. The inner layer in most mollusc shells is porcellaneous, not nacreous, usually a non-iridescent shine. Rarely, it is a non-nacreous iridescence like the flame structure in conch pearls. A University of Cambridge group has produced the first man made nacre with potential applications in aircraft, car windscreens, tank and body armour | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Chillmaid, Martyn F. |
| Taille de l’image : | 9548 px × 3661 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
Prix pour cette image À partir de 45 €
Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €