Do ordinary mussels have pearls?

The pearls of ordinary mussels are formed by pearls secreted by mussels to protect themselves after foreign objects enter their bodies. Due to the large number of common mussels, and the formation of pearls requires suitable conditions, the number of pearls that can be formed in common mussels is relatively small, and the quality of pearls is also low.

Pearl is a gem with high economic and cultural value, and it is one of the traditional specialties in China. In addition to common mussels, there are many other shellfish that can also form pearls, such as seawater pearls and Nanyang pearls. In the quality evaluation of pearls, many factors such as luster, color, shape and size of pearls are mainly considered.