Natural freshwater pearls occur in mussels for the same reason that saltwater pearls occur in oysters. Foreign material, usually a sharp object or parasite, enters a mussel and cannot be expelled.

Most pearls come from oysters, which thrive in both freshwater and saltwater environments ... In response, the mantle secretes layers of nacre, the same material that forms the oyster's shell, around ...

Van Scoy Diamonds offers a collection of Honora pearl necklaces, featuring freshwater pearls that exemplify quality and craftsmanship. Each piece showcases the natural beauty of pearls, which are ...

Pearls are made by marine oysters and freshwater mussels as a natural defence against an irritant such as a parasite entering their shell or damage to their fragile body. The oyster or mussel slowly ...