hematite hydrohematite (IMAGE) Penn State Caption Hydrohematite (right) is a brighter red than anhydrous hematite (left). Credit Si Athena Chen, Penn State Usage Restrictions non commercial use only License Original 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.