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Even their shells are useful, both in and out of the water. They're used to help start a new reef, or make a home for another ...

Oyster shells are bulky and plain, but the treasures they hold go beyond their tasty meat and beautiful pearls. One company in Hong Kong is turning them into materials for constructing buildings.

Slug down the actual oyster (“my tongue was a filling estuary, my palate hung with starlight”) and the shell itself has many uses. Mostly calcium carbonate, they can be crushed and ground for ...