Green Island Cement is turning oyster shells into cement for buildings in Hong Kong. Oyster shells are 91 per cent limestone, which is a key ingredient in cement. Mining limestone usually produces ...
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.
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Outside, the storm was letting up. The rain grew softer against the restaurant window until it stopped. Red sauce pooled at the bottom of Quique’s plate like warm blood ready to pump through a ...