from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A black, slightly magnetic mineral of zinc, iron, and manganese, ZnFe2O4, that is a valuable source of zinc.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An isometric-hexoctahedral mineral containing iron, manganese, oxygen, and zinc.

from the GNU version of the Collaborative International Dictionary of English

  • n. A kind of mineral of the spinel group.

from The Century Dictionary and Cyclopedia

  • n. An oxid of iron, zinc, and manganese, belonging to the spinel group.


After Franklin, a borough of northern New Jersey.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Franklin +‎ -ite (Wiktionary)


  • The franklinite is mixed with coal and heated to a high temperature in a furnace, by which process the zinc is set free and converted into vapor.

    An Elementary Study of Chemistry

  • ~ Commercially it is often made from franklinite in the following way.

    An Elementary Study of Chemistry

  • This state furnished minerals not found anywhere else; for instance the franklinite -- a compound of iron, zinc, and manganese -- named from Dr. Franklin.

    By Water to the Columbian Exposition

  • They consist of willemite and zincite, together with large amounts of franklinite (an iron-manganese oxide) and silicates, in a pre-Cambrian white crystalline limestone near its contact with a coarse-grained granite-gneiss.

    The Economic Aspect of Geology

  • Also FYI, this is the correct way to spell amendment. franklinite wrote on Feb 20, 2009 6: 15 AM:



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