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Photo of the Day

Macro of sea shell - curves and layers are covered with pearl, with golden glitter in the light - great for background

Photo Of The Day: Mother of Pearl

06/30/15

Many mollusks sport a lovely shimmer on the inside of their shells from nacre, an iridescent substance made primarily from aragonite (a form of calcium carbonate). Scientists have made a cheap, efficient recipe for synthetic nacre that could one day be widely used as a heat shield for everything from... [read more]

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