franklinite definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
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: after Franklin, N.J., where found
franklinite definition by American Heritage Dictionary
A black, slightly magnetic mineral of zinc, iron, and manganese, ZnFe2O4, that is a valuable source of zinc.
Origin: After Franklin, a borough of northern New Jersey.