- a feldspar mineral of the plagioclase group, often characterized by a brilliant change of colors, with blue and green most common.
Origin of labradorite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for labradorite
It would be just as sensible to say that labradorite, which is rare, should be as costly as diamonds.The Story of the Trapper
A. C. Laut
The bed of the country here is Archan rock, and many beautiful specimens of labradorite dot the shores.
Of the different colors shown by labradorite blue and 78 green are the most common, yellow and red least so.
Labradorite is a common rock-forming mineral, especially in the older rocks.
The second species of Feldspar which may be mentioned as of use as an ornamental stone is labradorite.
- a blue, green, or reddish-brown feldspar mineral of the plagioclase series: used as a decorative stone. Formula: CaAl 2 Si 2 O 8 .NaAlSi 3 O 8
C18: named after Labrador, where it was found; see -ite 1
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
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.