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A mineral form of molybdenum sulfide, MoS2, that is the principal ore of molybdenum.


(Minerals) a soft grey mineral consisting of molybdenum sulphide in hexagonal crystalline form with rhenium as an impurity: the main source of molybdenum and rhenium. Formula: MoS2


(məˈlɪb dəˌnaɪt)

a soft, graphitelike mineral, molybdenum sulfide, MoS2, occurring in foliated masses or scales: the principal ore of molybdenum.
[1790–1800; variant molybdenum + -ite1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.molybdenite - a mineral resembling graphite that is valued as the chief source of molybdenum and its compounds
atomic number 42, molybdenum, Mo - a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
PU-RC-94 returned geochemically anomalous values of As, Sb, Cu and Mo, related to a hydrothermal brecciation with quartz, tourmaline, chalcocite and molybdenite, typical of a porphyry system.
All 21 holes drilled at IKE during the past three years have intersected long intervals of chalcopyrite and molybdenite mineralization over an increasingly broad area measuring 1,200 meters (m) eastwest by 1,000 m north-south and extending to depths of more than 500 m.
Cleavage in pink diamond * Rough diamond with green cleavage surface * Gahnite inclusions in cat's-eye heliodor * Trapiche pezzottaite * Modified Rheinberg illumination * Melt inclusions in Montana sapphires * Molybdenite in topaz.
Zone III and the Ellipse Zone are the largest and best explored parts of the deposit and contain molybdenite and scheelite in sheeted quartz veins and stockworks.
At the drill-ready Kawisgag prospect there are two main centers of mineralization and alteration which locally contain disseminated and vein chalcopyrite, molybdenite, and pyrite at surface.
These alloys found important applications in industry that resulted in a great demand for the rhenium produced from the molybdenite fraction of porphyry copper ores.
The Mo mineralization occurs as disseminated molybdenite in red bed sedimentary rock spatially associated with minor intrusive phases outside of the main ring structure.
The researchers have revealed that molybdenite, or MoS2, is a very effective semiconductor.
The Property covers a zone of high-grade molybdenite float as well as a gold-bearing quartz vein epithermal system.
Relict crystals from the leaching phase and newly grown crystals of other species formed up to 10% of the pocket contents and could include siderite, fluorite, molybdenite, topaz, columbite-(Fe), rutile, pyrite, beryl, very rarely phenakite and other minerals.
We look forward to receiving additional Mo assays to get a better understanding of the distribution of molybdenite in the tungsten skarn at Springer.
Re-Os ages for Archean molybdenite and pyrite, Kuittila-Kivisuo, Finland, and Proterozoic molybdenite, Kabeliai, Lithuania: testing the chronometer in a metamorphic and metasomatic setting // Mineral.