[lab-ruh-daw-rahyt, lab-ruh-dawr-ahyt] /ˈlæb rə dɔˌraɪt, ˌlæb rəˈdɔr aɪt/
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
Related forms
[lab-ruh-daw-rit-ik] /ˌlæb rə dɔˈrɪt ɪk/ (Show IPA),
Example Sentences for labradorite
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.
British Dictionary definitions for labradorite
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]

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labradorite in Science
  (lāb'rə-dôr'īt', -dô-rīt')   
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.
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Tile value for labradorite

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