strontianite

from WordNet (r) 3.0 (2006)

strontianite
    n 1: a mineral consisting of strontium carbonate

from The Collaborative International Dictionary of English v.0.48

Strontianite \Stron"ti*an*ite\, n. (Min.)
   Strontium carbonate, a mineral of a white, greenish, or
   yellowish color, usually occurring in fibrous massive forms,
   but sometimes in prismatic crystals.
   [1913 Webster]