Dictionary
wil•lem•ite
Pronunciation: (wil'u-mīt"), [key]—
n.
a mineral, a zinc silicate, Zn
2SiO
4, sometimes containing manganese, occurring in prismatic crystals or granular masses, usually greenish, sometimes white, brown, or red: a minor ore of zinc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.