Word Study
Cryolite
CIDE DICTIONARY
Cryolite, n. [Gr. kry`os icy cold, frost + -lite: cf. F. cryolithe.].
A fluoride of sodium and aluminum, found in Greenland, in white cleavable masses; -- used as a source of soda and alumina. [1913 Webster]
OXFORD DICTIONARY
Cryolite, n. Mineral. a lustrous mineral of sodium-aluminium fluoride, used in the manufacture of aluminium.
For further exploring for "Cryolite" in Webster Dictionary Online