Min. [f. Franklin, New Jersey, where it is found + -ITE.] A compound of oxides of iron, manganese, and zinc, found in brilliant black crystals.
1820. Amer. Jrnl. Sc., II. 323. The black zinciferous mineral, the Franklinite.
1862. Dana, Man. Geol., 84. Franklinite, an iron-zinc ore, is also one of the metamorphic rocks in northern New Jersey.
