freshwater mussels are the type of oysters that have pearls in them.
what type of oysters have pearls in them?
freshwater mussels
almost all shell-bearing mollusks can secrete pearls, yet most are not very valuable. pearls can form in both saltwater and freshwater environments.





























pearl oysters are not closely related to true oysters, being members of a distinct family, the feathered oysters (pteriidae). both cultured pearls and natural pearls can be extracted from pearl oysters, though other molluscs, such as the freshwater mussels, also yield pearls of commercial value.
oyster
the most valuable of baroque pearls are the south sea and tahitian pearls. these pearls are produced by "pinctada margaritifera" (black-lipped oysters) and "pinctada maxima" (gold-lipped and white-lipped oysters). although these are a variety of cultured saltwater pearls, the amount of time that the pearls are cultured dramatically increases the depth of the nacre, and the likelihood of producing a baroque pearl. most tahitian pearl farm harvests, for example, produce more than 40 percent baroque and semi-baroque pearls. western australia is currently the world's largest cultivator of "pinctada maxima" gold-lipped oysters. tahiti is the number one cultivator of "pinctada maxima" black-lipped oysters.
baroque pearl