The Collaborative International Dictionary of English v.0.48:

Sparry \Spar"ry\, a. [From Spar.]
   Resembling spar, or consisting of spar; abounding with spar;
   having a confused crystalline structure; spathose.
   [1913 Webster]

   Sparry iron (Min.), siderite. See Siderite
   (a) .

   Sparry limestone (Min.), a coarsely crystalline marble.
      [1913 Webster]