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jade, common name for either of two minerals used as gems. The rarer variety of jade is jadeite, a sodium aluminum silicate, NaAl(SiO3)2, usually white or green in color; the green variety is the more valuable. The commoner and less costly variety of jade is nephrite, a calcium magnesium iron silicate of varying composition, white to dark green in color. Jade has been prized by the Chinese and Japanese, as well as by pre-Colombian Mesoamerican peoples, as the most precious of all gems. The Chinese in particular are known for the objets d'art they carve from it, and they traditionally associated it with the five cardinal virtues: charity, modesty, courage, justice, and wisdom; they also attributed healing powers to it. It was much used for implements by ancient peoples, especially in Mexico, Switzerland, France, Greece, Egypt, Asia Minor, and New Zealand. Jadeite is found in upper Myanmar, in Japan, and in Guatemala; nephrite in New Zealand, Turkistan, Siberia, China, Silesia, Wyoming, California, and British Columbia.
See S. C. Nott, Chinese Jade throughout the Ages (2d ed. 1962); R. Gump, Jade (1962); J. M. Hartman, Chinese Jade of Five Centuries (1969, repr. 1987); G. Wills, Jade of the East (1972); A. Levy and C. Scott-Clark, The Stone of Heaven (2002).
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A hard, compact, dark-green or greenish-white gemstone composed of either jadeite or nephrite. Also known as jadestone.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
a. a semiprecious stone consisting of either jadeite or nephrite. It varies in colour from white to green and is used for making ornaments and jewellery
b. (as modifier): jade ornaments
an old overworked horse; nag; hack
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
U Washington, late 80's. A strongly-typed language, object-oriented but without classes. For type research. The compiler output is Smalltalk. [Submitter claimed that Jade has exactly one user!]
Implicit coarse-grained concurrency. The constructs 'with', 'withonly' and 'without' create tasks with specified side effects to shared data objects. Implemented as a C preprocessor. "Coarse-Grain Parallel Programming in Jade", M.S. Lam et al, SIGPLAN Notices 26(7):94-105 (Jul 1991).
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