Helvite

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Helvine \Hel"vine\, Helvite \Hel"vite\, n. [L. helvus of a light
     bay color.] (Min.)
     A mineral of a yellowish color, consisting chiefly of silica,
     glucina, manganese, and iron, with a little sulphur.
     [1913 Webster]