Sodalite

2 definitions found

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

  Sodalite \So"da*lite\, n. [Soda + -lite: cf. F. sodalithe.]
     (Min.)
     A mineral of a white to blue or gray color, occuring commonly
     in dodecahedrons, also massive. It is a silicate of alumina
     and soda with some chlorine.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  sodalite
       n : a vitreous mineral consisting of sodium aluminum silicate
           and sodium chloride in crystalline form; occurs in
           igneous rocks