Anhydrite

1 definition found

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

  Anhydrite \An*hy"drite\, n. [See {Anhydrous}.] (Min.)
     A mineral of a white or a slightly bluish color, usually
     massive. It is anhydrous sulphate of lime, and differs from
     gypsum in not containing water (whence the name).
     [1913 Webster]