Only oysters of the Ostreidae family can make ... it's the classic shade used in jewelry. However, both natural and cultured ...

Throughout much of recorded history, a natural pearl necklace ... the shape and lustre of saltwater pearls, which they discovered while opening oysters for food. No matter the origin, a reverence ...

The oyster’s response to these intruders is to encase them in nacre, leading to pearl formation. Natural pearls vary in size, with those exceeding 10 millimetres being rare and particularly ...

Let’s not forget the more glamorous side of the humble oyster – the pearl. A natural pearl will form in an oyster when a foreign object, like a grain of sand, gets inside the shell.

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 ...

Pearl farmers haul out their oyster cages in Ago Bay ... Whether the cause is a natural virus, a pollution-caused disease, or something entirely different, the Japanese have to come up with ...