Calcium carbonate is in eggshells, seashells, a rock called marble, and in antacid tablets like Tums and Rolaids. In this activity, you can use a common liquid to detect calcium carbonate! Cover your ...

This is different from the chemical that makes up seashells, which is calcium carbonate. Luckily, sea shells and teeth don’t dissolve in water. There is a special soft flexible plastic material that ...

These shells are made from calcium carbonate and conchiolin - a tough protein ... facts with stunning images of specimens from the Museum's eight-million-strong shell collection. These shells were ...

[New Paper] Meet Delectopecten thermus, a new species of Glass Scallop from a deep-sea hot vent in Okinawa Trough, Japan! We ...

By secreting layers of aragonite and conchiolin, the same substances that are in its calcium carbonate shell, the mollusc creates a material called nacre, commonly known as mother-of-pearl. The oyster ...