lherzolite

from The Collaborative International Dictionary of English v.0.48

Lherzolite \Lher"zo*lite\ (l[~e]r"z[-o]*l[imac]t), n. [From
   Lherz, a place in the Pyrenees + -lite.] (Min.)
   An igneous rock consisting largely of chrysolite, with
   pyroxene and picotite (a variety of spinel containing
   chromium).
   [1913 Webster]