cryolite

English Thesaurus

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

hypernym	:	mineral,
definition	:	solid homogeneous inorganic substances occurring in nature having a definite chemical composition (noun.substance)

substance holonym	:	atomic number 9, f, fluorine,
definition	:	a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite (noun.substance)