Cryolite

[kraiәlait]

(noun.) a white mineral consisting of fluorides of aluminum and sodium; a source of fluorine.

Typist: Ruth--From WordNet

(n.) A fluoride of sodium and aluminum, found in Greenland, in white cleavable masses; -- used as a source of soda and alumina.

Typed by Allan

n. a mineral found on the coast of Greenland consisting mainly of a fluoride of aluminium in combination with fluoride of sodium.

Typed by Lesley

Checked by Eugene