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noun
an amphibole mineral consisting of calcium magnesium silicate in monoclinic crystalline form; a source of jade that is less valuable than from jadeite; once believed to cure kidney disorders
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jade
a semiprecious gemstone that takes a high polish; is usually green but sometimes whitish; consists of jadeite or nephrite
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jadestone
a semiprecious gemstone that takes a high polish; is usually green but sometimes whitish; consists of jadeite or nephrite