diadochite
noun
di·ad·o·chite
dīˈadəˌkīt
plural -s
: a mineral Fe2(PO4)(SO4)(OH).5H2O consisting of a basic hydrous ferric phosphate and sulfate that is brown or yellowish in color
Word History
Etymology
German diadochit, from Greek diadochos succeeding, relieving (from diadechesthai to succeed, relieve, from dia- + dechesthai to take, receive) + German -it -ite; akin to Latin decēre to be fitting, proper