vivianite
/ˈvɪvɪənaɪt/noun
mass noun
- a mineral consisting of a phosphate of iron which occurs as a secondary mineral in ore deposits. It is colourless when fresh but becomes blue or green with oxidization.蓝铁矿。
词源
early 19th cent.: named after John H. Vivian （1785-1855）， British mineralogist， + -ITE1 .