riebeckite
/ˈriːbekaɪt/noun
mass noun
- a dark blue or black mineral of the amphibole group, occurring chiefly in alkaline igneous rocks or as blue asbestos (crocidolite)钠闪石。
词源
late 19th cent.: from the name of Emil Riebeck (died 1885), German explorer, + -ITE1.