cryolithionite
noun
cry·o·lith·i·o·nite
ˌkrīōˈlithēəˌnīt,
-lə̇ˈthīə-
plural -s
: a mineral composed of a fluoaluminate of sodium and lithium Na3Li3(AlF6)2 found in the Ural mountains
Word History
Etymology
alteration of earlier kryolithionite, from kryo- cryo- + lithionite (obsolete synonym of lepidolite), from German lithonit, from obsolete New Latin lithion (now lithia) + German -it -ite