cryolite

名词 cryolite:

1. a white mineral consisting of fluorides of aluminum and sodium; a source of fluorine
   同义词：Greenland spar

cry.o.lite

n.（名词）
An uncommon, white, vitreous natural fluoride of aluminum and sodium, Na3AlF ', nearly invisible in water in powdered form and used chiefly in the electrolytic recovery of aluminum. Also called Greenland spar
冰晶石：一种罕见的、白色、玻璃状的天然铝和钠的氟化物，Na3AlF '，以粉末的形式在水中是看不到的，主要用于铝的电解质复原 也作 Greenland spar