Sentences with phrase «as calcium carbonate crystals»
The ammonia reacts with water to form ammonium hydroxide, which makes any nearby calcium precipitate out as calcium carbonate crystals, or limestone.
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As the bacteria went to work metabolizing the urea, calcium carbonate crystals began to form around the bacteria, filling in the gaps between each grain of sand.
Using a powerful microscope that lets researchers see the formation of crystals in real time, a team led by the Pacific Northwest National Laboratory found that negatively charged molecules — such as carbohydrates found in the shells of mollusks — control where, when, and how calcium carbonate forms.
As the new crystals formed, they consumed the calcium carbonate within the drop on which they nucleated.
In addition, proving the connection means it will be easier to determine such attractive forces for crystals made of different materials, such as calcium carbonate found in seashells.
The nanoparticles accumulate and form stony structures made of calcium carbonate — known as aragonite — by growing crystals.