witherite
/ˈwɪðəˌraɪt/noun
mass noun
- a rare white mineral consisting of barium carbonate, occurring especially in veins of galena碳钡矿, 毒重石。
词源
late 18th cent.: from the name of William Withering （1741-99）， the English physician and scientist who first described it， + -ITE1.