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The formation of a natural pearl begins when a foreign substance slips into the oyster between the mantle and the shell, which irritates the mantle. The mantle covers the irritant with layers of the same nacre substance that is used to create the shell. This eventually forms a pearl.
So a pearl is a foreign substance covered with layers of nacre. Cultured pearls are created by the same process as natural pearls, with a slight nudge by pearl harvesters. To create a cultured pearl, the harvester opens the oyster shell and cuts a small slit in the mantle tissue. Cutting the mantle is enough to induce the nacre secretion that produces a pearl -- an irritant doesn't have to be inserted.
While cultured and natural pearls are considered to be of equal quality, cultured pearls
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What mollusks form pearls?
oysters
Do pearls come from oysters?
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.
What precious object is produeced by some oysters and how does it form?
Some oysters have pearls inside them. They make the pearls by picking up a speck of sand and sloly very very slowly turning it into a pearl.
What are the release dates for Oysters and Pearls - 1915?
Oysters and Pearls - 1915 was released on: USA: 16 April 1915
What sea animal do you fins pearls in?
Oysters, but very very rarely they are found in clams.
In what sea creatures have pearls in them?
Bivalve crustaceans such as oysters have pearls.
What gem is made by oysters and how?
Pearls
What animals are pearls found?
Oysters.
What gem is made by oysters?
pearls
Do clams have pearls in them if found on the coast?
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!
Are there pearls in the coral in the Caribbean?
Pearls don't come from coral, they come from oysters.
Where can I get information on the creation of pearls?
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.
