Helvine
Pronunciation : Hel"vine, Hel"vite
Part of Speech : n.
Etymology : [L. helvus of a light bay color.] (Min.)
Definition : Defn: A mineral of a yellowish color, consisting chiefly of silica, glucina, manganese, and iron, with a little sulphur.
Source : Webster's Unabridged Dictionary, 1913