The Collaborative International Dictionary of English v.0.48:

Scolecite \Scol"e*cite\ (? or ?; 277), n. [Gr. skw`lhx, -hkos, a
   worm, earthworm.] (Min.)
   A zeolitic mineral occuring in delicate radiating groups of
   white crystals. It is a hydrous silicate of alumina and lime.
   Called also lime mesotype.
   [1913 Webster]