Pearls are formed in oysters due to the deposition of a secreted mineral around a foreign body inside the oyster. This normally occurs over time whereby layers of material are deposited over grains of sand.
If you have an oyster that contains a pearl, you just have to open the shell and there it is.
Pearls do come from pearl oysters or other freshwater mollusks. Natural pearls can occur randomly. Pearls that are high quality are highly valued as jewelry.
Oysters and Pearls - 1915 was released on: USA: 16 April 1915
Oysters, but very very rarely they are found in clams.
Bivalve crustaceans such as oysters have pearls.
Pearls
Oysters.
pearls
No, clams never have pearls in them no matter where they are found .Oysters are the ones that have peals but it's a very rare to find one "the pearls that is not the oysters" .That's why there so expensive!
Pearls don't come from coral, they come from oysters.
Oysters are not the only type of mollusk that can produce pearls. Clams and mussels can also produce pearls, but that is a much rarer occurrence. Most pearls are produced by oysters in both freshwater and saltwater environments.
Oysters. Actually, clams and certain other molluscs can also produce pearls, but it's only oyster pearls that are of gem quality.
rarely, oysters will contain them. a fisherman can catch several oysters at a time.