The oyster or mussel slowly secretes layers of aragonite and conchiolin, materials that also make up its shell. This creates a material called nacre, also known as mother-of-pearl, which encases the ...

Pappas proudly pulls an oyster out of the mesh, pops the speckled white top up from its hinge, knifes through the connective muscle, and flips it over in its shell. (This motion is called the ...

We’re doing a lot of tree plantings, but the coast is such ... and see oysters already growing on them,” said Darrah Fox Bach, the oyster shell recycling program manager.