Cryolite
Cryolite (krī"?-l?t) , noun
[Greek kry`os icy cold, frost + -lite: compare French cryolithe.]
(Mineralogy) A fluoride of sodium and aluminum, found in Greenland, in white cleavable masses; -- used as a source of soda and alumina.
Cryolite (krī"?-l?t) , noun
[Greek kry`os icy cold, frost + -lite: compare French cryolithe.]