cryolite[krī′ō līt′, -ə-]
cryolite definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a fluoride of sodium and aluminum, NaAlF, found in Greenland or produced synthetically and used in the molten state in the electrolytic production of aluminum
Origin: cryo- plush -lite: with reference to its icy appearance
cryolite definition by American Heritage Dictionary
An uncommon, white, vitreous natural fluoride of aluminum and sodium, Na3AlF6, nearly invisible in water in powdered form and used chiefly in the electrolytic recovery of aluminum. Also called Greenland spar.