Martite
Pronunciation : Mar"tite
Part of Speech : n.
Etymology : [L. Mars, Martis, the god Mars, the alchemical name of iron.] (Min.)
Definition : Defn: Iron sesquioxide in isometric form, probably a pseudomorph after magnetite.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder