About molybdenite
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- Category: Molybdenum knowledge
- Published on 10 July 2014
- Written by ling
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Molybdenite molybdenum disulfide, molybdenum is the most important resource. There are different types, belonging to hexagonal and triangular crystal. The heating element is used to produce molybdenum filament bracket anode and grid and other electrical and electronic components and the electric furnace. Molybdenite also often contain rhenium and rhenium containing the highest or minerals, and therefore it is the most important mineral extract rhenium. Molybdenite is very soft, even softer than our fingernails yet. They generally small flake or granular, was leaden, with a strong metallic luster. Of Henan, Shaanxi, Liaoning and other real estate of molybdenite.
Chemical composition: MoS2, Mo Mo 59.94%, S 40.06% sulfur; identification characteristics: molybdenite its lead gray, metallic luster, low hardness, very complete cleavage underside, heavy, strong luster, color and lighter streak graphite with a similar distinction; than graphite weight, while slightly blue, graphite is slightly brown; in streaks, the molybdenite green streak, but graphite black. Boiling or burning it in nitric acid, molybdenum trioxide can be obtained in the air.
Causes of occurrence: mainly high mesothermal origin, and its deposit with the acidic rocks on the causes of these; most important molybdenum porphyry molybdenum deposit; and cassiterite, wolframite, bismuthinite, arsenopyrite other symbiotic or symbiotic with garnet, diopside, epidote, scheelite and so on.
Known origin: origin of the world-famous American Arizona (Mohaveco.), Colorado, Utah and New South Wales, Australia (King Sgate), Quebec, Canada (Quebec), Ontario (Lyndoch Twp, Ontario,.), Norway, Sweden, United Kingdom , Mexico, China, Liaoning, Henan, Shanxi, Shaanxi and other places.
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