Cultured Pearls Versus Natural Pearls. A Natural Pearl is formed when an irritant accidentally gets into the soft tissue of the mussel in an oyster. As a defense mechanism, the animal produces secretions to coat the irritant. Many layers of coating are deposited on the irritant making the irritant smooth.
Cultured vs. Natural Pearls - Stan Paul Jewelry
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Cultured vs. Natural Pearls - Stan Paul Jewelry
stanpauljewelry.com/articles/cultured_Natural_Pearls.html