New Form of Carbon is Hard As a Rock, Yet Elastic, Like Rubber (image) Carnegie Institution for Science Share Print E-Mail Caption This is a visualization of ultrastrong, hard and elastic compressed glassy carbon. The illustrated structure is overlaid on an electron microscope image of the material. Credit Images are provided courtesy of Timothy Strobel. Usage Restrictions With credit 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.