Metals could reveal corals' past lives

Coral reefs worldwide face dire threats from ocean warming, increasing acidification, pollution, and other stressors. Understanding how corals respond to stress and how they evolved along with their environments is critical ...

The effect of additives on calcium carbonate crystallization

Results of a large-scale innovative Citizen Science experiment called Project M, which involved more than 1,000 scientists, 800 samples and 110 U.K. secondary schools in a huge experiment, were published in the journal CrystEngComm.

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Calcium carbonate

Calcium carbonate is a chemical compound with the chemical formula CaCO3. It is a common substance found in rock in all parts of the world, and is the main component of shells of marine organisms, snails, pearls, and eggshells. Calcium carbonate is the active ingredient in agricultural lime, and is usually the principal cause of hard water. It is commonly used medicinally as a calcium supplement or as an antacid, but high consumption can be hazardous.

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