For almost a century, scientists have been puzzled by a process that is crucial to much of the life in Earth's oceans: Why does calcium carbonate, the tough material of seashells and corals, sometimes take the form of calcite, ...
Condensed Matter
Mar 3, 2015
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673
Nature packs away carbon in chalk, shells and rocks made by marine organisms that crystallize calcium carbonate. Now, research suggests that the soft, organic scaffolds in which such crystals form guide crystallization by ...
Materials Science
Jan 26, 2015
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659
(PhysOrg.com) -- Scientists at Berkeley Lab's Molecular Foundry imaged the growth of protein-studded mineral surfaces with unprecedented resolution and provided a glimpse into how living systems engineer key structural materials. ...
Nanophysics
Dec 16, 2009
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(PhysOrg.com) -- It has a beautiful, but also an unpleasant side: crystallization determines the shape of precious stones, but also causes the lime scale in washing machines. How this comes about, has been known for a long ...
Jan 12, 2009
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Mineral-rich waters originating from the Apennine Mountains of Italy flowed through ancient Rome's Anio Novus aqueduct and left behind a detailed rock record of past hydraulic conditions, researchers have said. Two studies ...
Earth Sciences
Aug 8, 2022
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562
Researchers at AMOLF have found a way of making calcium carbonate structures suitable for use in electronics. They do this by modifying the composition of the material so that it becomes a semiconductor without losing its ...
Materials Science
Jun 5, 2018
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106
Calcium carbonate, or CaCO3, comprises more than 4% of the earth's crust. Its most common natural forms are chalk, limestone, and marble, produced by the sedimentation of the shells of small fossilized snails, shellfish, ...
Biochemistry
Jun 7, 2017
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337
For the first time scientists can see how the shells of tiny marine organisms grow atom-by-atom, a new study reports. The advance provides new insights into the mechanisms of biomineralization and will improve our understanding ...
Materials Science
Oct 24, 2016
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1012
One of the most important molecules on earth, calcium carbonate crystallizes into chalk, shells and minerals the world over. In a study led by the Department of Energy's Pacific Northwest National Laboratory, researchers ...
Earth Sciences
Sep 4, 2014
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With the help of a solitary sea squirt, scientists have resolved the longstanding puzzle of the crystal structure of vaterite, an enigmatic geologic mineral and biomineral.
Condensed Matter
Apr 25, 2013
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