Pearls are made by marine oysters and freshwater mussels as a natural defence against an irritant such as a parasite entering their shell or damage to their fragile body. The oyster or mussel slowly ...

They are exquisite, elegant, aphrodisiac, and rich in minerals like calcium, zinc, copper, and selenium ... make sure the ...

This is my pearl,' added Bryant, parading the calcium carbonate-coated particle ... of sand or some other irritants gets into an oyster shell, spurring the oyster to coat itself with thin layers ...