Dictionary
viv•i•an•ite
Pronunciation: (viv'ē-u-nīt"), [key]—
n.
a secondary mineral, hydrous ferrous phosphate, Fe
3(PO
4)
2·8H
2O, occurring in the form of pale blue crystals or powder.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.