Qing-zhu Yin, UC Davis (image) University of California - Davis Share Print E-Mail Caption Qing-Zhu Yin, professor of geology at UC Davis, shows a 5.4-gram meteorite fragment, which was part of the Sutter's Mill meteorite that fell over Northern California on April 22, 2012. Gregory Jorgensen, a UC Davis alum, found the meteorite on his driveway and donated it to UC Davis. Credit Gregory Urquiaga/UC Davis Usage Restrictions Include 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.