Ilvaite
Pronunciation : Il"va*ite
Part of Speech : n.
Etymology : [From L. Ilva, the island now called Elba.] (Min.)
Definition : Defn: A silicate of iron and lime occurring in black prismatic crystals and columnar masses.
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