Quiz: Remember the definition of mal de mer?


[ol-uh-veen, ol-uh-veen] /ˈɒl əˌvin, ˌɒl əˈvin/
Mineralogy. any of a group of magnesium iron silicates, (Mg,Fe) 2 SiO 4 , occurring in olive-green to gray-green masses as an important constituent of basic igneous rocks.
Also called chrysolite.
1785-95; < German Olivin, equivalent to Olive olive + -in -ine2
Related forms
[ol-uh-vin-ik] /ˌɒl əˈvɪn ɪk/ (Show IPA),
[ol-uh-vi-nit-ik] /ˌɒl ə vɪˈnɪt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for olivine
  • Blues and greens indicate substances such as pyroxene and olivine, while warmer tones show clays and other materials.
  • The remainder was recovered from dolomite, magnesite, and olivine.
  • Unsurprisingly each is an instance of olivine from the source library.
  • We know that magma supplied from the hot spot to the volcanoes is chock-full of olivine crystals.
  • In general, rocks collected from the submarine extension of the southwest rift zone are rich in the heavy green mineral olivine.
British Dictionary definitions for olivine


/ˈɒlɪˌviːn; ˌɒlɪˈviːn/
an olive-green mineral of the olivine group, found in igneous and metamorphic rocks. The clear-green variety (peridot) is used as a gemstone. Composition: magnesium iron silicate. Formula: (MgFe)2SiO4. Crystal structure: orthorhombic Also called chrysolite
any mineral in the group having the general formula (Mg,Fe,Mn,Ca)2SiO4
Word Origin
C18: from German, named after its colour
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
olivine in Science
An olive-green to brownish-green orthorhombic mineral. Olivine is a common mineral in the igneous rocks, such as basalt and gabbro, that make up most of the Earth's crust beneath the oceans. Chemical formula: (Mg,Fe)2SiO4. ◇ Olivine in which the mafic component consists entirely of magnesium is called forsterite. Chemical formula: Mg2SiO4. ◇ Olivine in which the mafic component consists entirely of iron is called fayalite. Chemical formula: Fe2SiO4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for olivine

Most English speakers likely know this word

Word Value for olivine

Scrabble Words With Friends

Nearby words for olivine