Calcite Crystals Forming (VIDEO) DOE/Pacific Northwest National Laboratory This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Diamond-shaped crystals of calcite form directly from solution. A round particle that could be either amorphous calcium carbonate or vaterite forms nearby. Credit Nielsen et al. 2014/<i>Science</i> Usage Restrictions Credit Nielsen et al. 2014/<i>Science</i> License Licensed content 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.