Sunday, January 10, 2016

How seashells get their strength

Seashells and lobster claws are hard to break, but chalk is soft enough to draw on sidewalks. Though all three are made of calcium carbonate crystals, the hard materials include clumps of soft biological matter that make them much stronger. A new study reveals how soft clumps get into crystals and endow them with remarkable strength.

from Geochemistry News -- ScienceDaily

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