/meuh lib"deuh nuyt'/, n.
a soft, graphitelike mineral, molybdenum sulfide, MoS2, occurring in foliated masses or scales: the principal ore of molybdenum.
[1790-1800; obs. molybden(a) MOLYBDENUM + -ITE1]

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 the most important mineral source of molybdenum, molybdenum disulfide (MoS2). Molybdenite crystals have the same hexagonal symmetry as those of tungstenite (tungsten disulfide). Both have layered structures and similar physical properties; the chief difference is the higher specific gravity of tungstenite. For detailed physical properties, see sulfide mineral (table).

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Universalium. 2010.

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  • molybdenite — [mə lib′də nīt΄] n. a very soft, lead gray mineral, MoS2, the chief ore of molybdenum; molybdenum sulfide …   English World dictionary

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  • molybdenite — noun Etymology: New Latin molybdena Date: 1837 a metallic gray usually foliated mineral consisting of molybdenum disulfide that is a major ore of molybdenum …   New Collegiate Dictionary

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