Hypertext Webster Gateway: "nephrite"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Nephrite \Neph"rite\ (?; 277), n. [Cf. F. n['e]phrite. See
{Nephritis}.] (Min.)
A hard compact mineral, of a dark green color, formerly worn
as a remedy for diseases of the kidneys, whence its name;
kidney stone; a kind of jade. See {Jade}.
From WordNet (r) 1.7 (wn)
nephrite
n : 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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