• synonyms


  1. a mineral, essentially sodium aluminum silicate, NaAlSi2O6, usually fibrous, occurring in compact masses, whitish to dark green: a form of jade.
Show More

Origin of jadeite

First recorded in 1860–65; jade1 + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for jadeite

Historical Examples of jadeite

  • She smiled: "Jadeite, of course; and lapis and crystals—the usual."

    The Business of Life

    Robert W. Chambers

  • Beside the commoner minerals five to eight per cent of implements made of nephritoids (nephrite, jadeite, and chloromelanite).

  • Jadeite occurs in association with the nephrite of Turkestan, and possibly in some other Asiatic localities.

  • The name jadeolite has been given by Kunz to a green chromiferous syenite from the jadeite mines of Burma.

  • The most remarkable of all are a large number of model celts made of jadeite and other hard stones.

British Dictionary definitions for jadeite


  1. a usually green or white mineral of the clinopyroxene group, found in igneous and metamorphic rocks. It is used as a gemstone (jade). Composition: sodium aluminium silicate. Formula: NaAlSi 2 O 6 . Crystal structure: monoclinic
Show More
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

jadeite in Science


  1. A rare, usually green mineral of the pyroxene group. Jadeite can also occur in white, auburn, buff, or violet varieties. The most highly valued form of jade consists of jadeite. Chemical formula: NaAlSi2O6.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.