A tiny piece of mantle tissue from a mussel or oyster is inserted into a live mollusk which is set back into a body of water. A "pearl sac" is developed around the piece and the mollusk begans coating the tissue with layers of nacre....the substance of pearls....making a pearl. Often, for both sea and freshwater pearls, along with the tissue is placed a shell bead which can be a variety of shapes. The mollusk then coats this bead with pearl substance. This way, the shape of pearl can be controlled.
Those big beautiful round lustrous pearls that have always been popular are often mostly a shell bead inside with a coating of pearl on the outside. Are they real pearls? Yes! But be sure to buy from a reputable seller to make sure the coating is thick enough not to peel or wear off.
An akoya pearl, by the way, is a pearl from the akoya oyster (Pinctada Fucata Martensii), which lives in salt water.
Most freshwater pearls from Asia are nearly solid nacre...you don't need to worry about them peeling.
In Tennessee, however, cultured freshwater pearls are grown around a shell shape making intriguing pearls which are extremely durable and lustrous.
Because more pearls can be grown in freshwater mussels than saltwater oysters, the price is often much more affordable.
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Orignal From: A tiny piece of mantle tissue from a mussel
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