Fahlunite

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Fahlunite \Fah"lun*ite\ (f[aum]"l[u^]n*[imac]t), n. [From
     Fahlun, a place in Sweden.] (Min.)
     A hydrated silica of alumina, resulting from the alteration
     of iolite.
     [1913 Webster]