Cultured freshwater pearls

Cultured freshwater pearls

E425/0444 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.0MB

Downloadable file size: 2.5MB

Price image Pricing

Please login to use the price calculator


Credit: VAUGHAN FLEMING/SCIENCE PHOTO LIBRARY

Caption: Cultured pearls from freshwater mussels. Pearls are accretions of nacre (calcium carbonate) secreted by certain oysters and mussels. The presence of a foreign body (such as a parasite or a grain of sand) within the shell triggers the secretion of nacre by the mollusc's mantle. Thin layers are deposited on the irritant particle and, over several years, a pearl is formed. Although commercially valuable pearls are obtained from freshwater mussels and oysters, the precious pearl comes from species of Margaritifera oysters found in tropical oceans. Cultured pearls are cultivated by inserting fragments of clam shell into the shells of farmed mussels and oysters.

Release details: Model release not required. Property release not required.

Keywords: cultured, cultured pearls, freshwater, nacre, pearl, pearls

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.