Coral Acid-Rich Protein 3 (image) Rutgers University Caption This is a Scanning electron microscope image of calcium carbonate crystals grown in artificial seawater containing individual coral acidic protein (CARP3). These crystals were formed both in pH 8.2 and 7.6. The reticulate structure of the crystal occurs due to the presence of organic material. Credit Tali Mass, Rutgers University Usage Restrictions Permission is granted to reproduce the image in connection with news coverage of this story. All other rights are reserved. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.