Peridotite

[,peri'dәutait]

Definition

(noun.) a dark coarse-grained igneous rock consisting principally of olivine.

Edited by Ben--From WordNet

Definition

(n.) An eruptive rock characterized by the presence of chrysolite (peridot). It also usually contains pyroxene, enstatite, chromite, etc. It is often altered to serpentine.

Typist: Tito

Definition

n. rock mainly composed of olivine.—n. Per′idot chrysolite.—adj. Peridot′ic.

Checked by Jo