sphalerite

sphalerite
Blende Blende, n. [G., fr. blenden to blind, dazzle, deceive, fr. blind blind. So called either in allusion to its dazzling luster; or (Dana) because, though often resembling galena, it yields no lead. Cf. {Sphalerite}.] (Min.) (a) A mineral, called also {sphalerite}, and by miners {mock lead}, {false galena}, and {black-jack}. It is a zinc sulphide, but often contains some iron. Its color is usually yellow, brown, or black, and its luster resinous. (b) A general term for some minerals, chiefly metallic sulphides which have a somewhat brilliant but nonmetallic luster. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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