Identify the mineral from following containing aluminium

The chemical name of cryolite is sodium hexafluoroaluminate and its chemical formula is \(Na_{3}AlF_{6}\). It's a rare mineral associated with the once-large deposit at Ivittuut on Greenland's west coast, which was depleted by \(1987\). Cryolite, sodium aluminium fluoride, is a colourless to white halide mineral. It's found in large quantities in Ivigtut, Greenland, and in small amounts in Spain, Colorado, and other places.
It is used as a solvent for bauxite in the electrolytic production of aluminium and has various other metallurgical applications, and it is used in the glass or ceramic industries and enamel factories, inbounded abrasives as filtering membranes, and in the manufacture of insect-killing chemicals (insecticides). A huge amount of synthetic or artificial cryolite is made from fluorite.