[ jey-dahyt ]
/ ˈdʒeɪ daɪt /


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

Nearby words

  1. jade,
  2. jade green,
  3. jade plant,
  4. jaded,
  5. jadedly,
  6. jadida, el,
  7. jadotville,
  8. jaeger,
  9. jaeger's test types,
  10. jael

Origin of jadeite

First recorded in 1860–65; jade1 + -ite1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for jadeite

British Dictionary definitions for jadeite


/ (ˈdʒeɪdaɪt) /


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
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

Science definitions for jadeite


[ jādīt′ ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.