- cryolite
[cryolite 词源字典]
- "A white or colourless mineral consisting of a fluoride of sodium and aluminium. It is added to bauxite as a flux in aluminium smelting", Early 19th century: from cryo- 'cold, frost' (because the main deposits are found in Greenland) + -lite.[cryolite etymology, cryolite origin, 英语词源]