
- Freshwater Pearls
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These form in freshwater mussels the way regular pearls form in saltwater oysters. They come in a variety of irregular or oblong shapes, and are rarely the perfect round shape of saltwater pearls. photo credit
These form in freshwater mussels the way regular pearls form in saltwater oysters. They come in a variety of irregular or oblong shapes, and are rarely the perfect round shape of saltwater pearls. photo credit