'olivine' definitions:
Definition of 'olivine'
From: WordNet
noun
A mineral consisting of magnesium iron silicate; a source of magnesium
Definition of 'olivine'
From: GCIDE
- Chrysolite \Chrys"o*lite\, n. [L. chrysolithos, Gr. ?; chryso`s gold + ? stone: cf. F. chrysolithe.] (Min.) A mineral, composed of silica, magnesia, and iron, of a yellow to green color. It is common in certain volcanic rocks; -- called also olivine and peridot. Sometimes used as a gem. The name was also early used for yellow varieties of tourmaline and topaz. [1913 Webster]