[lab-ruh-daw-rahyt, lab-ruh-dawr-ahyt]
a feldspar mineral of the plagioclase group, often characterized by a brilliant change of colors, with blue and green most common.

1805–15; named after Labrador, where first discovered; see -ite1

labradoritic [lab-ruh-daw-rit-ik] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To labradorite
World English Dictionary
labradorite (ˌlæbrəˈdɔːraɪt)
a blue, green, or reddish-brown feldspar mineral of the plagioclase series: used as a decorative stone. Formula: CaAl2Si2O8.NaAlSi3O8
[C18: named after Labrador, where it was found; see -ite1]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
labradorite   (lāb'rə-dôr'īt', -dô-rīt')  Pronunciation Key 
A blue, gray, green, or brown triclinic mineral that is a variety of plagioclase feldspar. It occurs in igneous rocks.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Small snow-white plagioclase phenocrysts of sodic labradorite are characteristic.
The material for the exterior walls is a form of crushed concrete and labradorite which has been cast, cut, ground and polished.
Most crystals are andesine, but the composition ranges from oligoclase to labradorite.
Gabbro consists of folded layers of alternating labradorite-rich gabbro and hornblende or augite-rich rock.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature