roemerite
noun
roe·mer·ite
ˈrāməˌrīt,
ˈrərm-
plural -s
: a mineral FeFe2(SO4)4·14H2O consisting of a hydrous sulfate of ferrous and ferric iron
Word History
Etymology
German römerit, from Friedrich A. Roemer †1869 German geologist + German -it -ite
First Known Use
1858, in the meaning defined above