Hylabrook (image) DOE/Lawrence Berkeley National Laboratory Caption The dust particle called Hylabrook contained the crystalline mineral olivine (pink), an amorphous material containing magnesium, and iron (green). Credit Westphal et al. 2014, Science/AAAS Usage Restrictions None 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.