cordierite

from WordNet (r) 3.0 (2006)
cordierite
    n 1: a blue mineral of magnesium and iron and aluminum and
         silicon and oxygen; often used as a gemstone
from The Collaborative International Dictionary of English v.0.48
Cordierite \Cor"di*er*ite\ (k[^o]r"d[i^]*[~e]r*[imac]t), n.
   [Named after the geologist Cordier.] (Min.)
   See {Iolite}.
   [1913 Webster]
antiflux / dictionary / cordierite
[email protected]