a dark-colored, hard, very heavy, magnetic mineral, zinc manganese iron oxide, (Zn,Fe,Mn)(Fe,Mn)O, an ore of zinc and manganese
Origin of frankliniteafter Franklin, N.J., where found
A black, slightly magnetic mineral of zinc, iron, and manganese, ZnFe2O4, that is a valuable source of zinc.
Origin of frankliniteAfter Franklin , a borough of northern New Jersey
Franklin + -ite