ˈkrīəˌlīt noun
( -s )
Etymology: International Scientific Vocabulary cry- + -lite; originally formed as German chryolith
: a mineral consisting of sodium-aluminum fluoride Na 3 AlF 6 found in Greenland usually in white cleavable masses of waxy luster and used in making soda and aluminum (hardness 2.5, sp. gr., 2.95-3.0)