jewelry, pearl, symmetrical pearl, the perfect pearl

How Are Oysters Able to Form a Perfect Pearl?

A perfect pearl or symmetrical Oriental pearl forms when an irritant works its way into a particular species of oyster, mussel, or clam. As a defense mechanism, the mollusk secretes a fluid to coat the irritant. Layer upon layer of this coating is deposited on the irritant until a lustrous gem is formed. A team of ...

Raven Montmorency

String of pearls on a shell.