Polyhalite

1 definition found

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

  Polyhalite \Pol`y*ha"lite\, n. [Poly- + Gr. ? salt.] (Min.)
     A mineral usually occurring in fibrous masses, of a brick-red
     color, being tinged with iron, and consisting chiefly of the
     sulphates of lime, magnesia, and soda.
     [1913 Webster] Polyhedral