Dictionary
daw•son•ite
Pronunciation: (dô'su-nīt"), [key]—
n.
an orthorhombic mineral, hydrous sodium aluminum carbonate, NaAlCO
3(OH)
2, with a vitreous luster, occurring as white blade-shaped crystals: mined as an ore of aluminum.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.