Cryolite
Cryolite is a halide mineral recognized among collectors for its crystal form and distribution.
About Cryolite
Cryolite is classified as a halide mineral in the cryolite group and has the chemical formula Na3AlF6. It crystallizes in the monoclinic system and is relatively soft, requiring careful handling.
Identification & care
Specimens usually show pseudocubic crystals; massive. Its color is typically colorless, snow-white and grayish. The luster is vitreous to waxy, the streak is white, and specimens range from transparent to translucent; appears invisible in water. The fracture is uneven, which is one of its key identifying features.
Collector context
Collector notes
For collectors, Cryolite is a benchmark crystalline species.