Uplifted Coral (image) University of Texas at Austin Share Print E-Mail Caption Weathering and moss can make uplifted coral blend into the background by making them look like rocks. Underneath the exterior layer the coral remains a bright white from calcium carbonate, the primary compound of coral skeletons. Credit Kaustubh Thirumalai Usage Restrictions None Share Print E-Mail 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.