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kultivisan biser

Cultured pearls are created when tiny irritants are inserted into a mollusk shell. Nacre builds around the irritants over time, resulting in cultured pearls. Most pearls today are cultured. To learn more, visit our Cultured Pearls Guide.

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biocid

A chemical that is toxic to microrganisms. Biocides are often used to eliminate bacteria and other single-cell organisms from water.