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Are pearls really found in oysters?

Cameron Powell | 2018-06-14 14:17:56 | page views：1802
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Olivia Turner

Studied at Princeton University, Lives in Princeton, NJ
A natural pearl begins its life inside an oyster's shell when an intruder, such as a grain of sand or bit of floating food, slips in between one of the two shells of the oyster, a type of mollusk, and the protective layer that covers the mollusk's organs, called the mantle.Nov 20, 2012
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Harper Perez

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A natural pearl begins its life inside an oyster's shell when an intruder, such as a grain of sand or bit of floating food, slips in between one of the two shells of the oyster, a type of mollusk, and the protective layer that covers the mollusk's organs, called the mantle.Nov 20, 2012
How Do Oysters Make Pearls? - Live Science
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