Gerson Senegal Mercury1 (IMAGE) Duke University Caption A Senegalese miner burns a mercury-gold amalgam in his hut to obtain gold ore. Credit Jacqueline Gerson, Duke University Usage Restrictions None 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.