molybdenite

Home > ... > Earth and the Environment > Minerals, Mining, and Metallurgy > Mineralogy and Crystallography > ...

Essential reading Compare
side-by-side A Dictionary of Earth Sciences World Encyclopedia The Columbia Encyclopedia, ...

molybdenite

molybdenite , a mineral, molybdenum disulfide, MoS ₂ , blue-gray in color, with a metallic luster and greasy feel. It occurs in crystals of the hexagonal system but more commonly in scales, grains, or foliated or massive form. It has an excellent basal cleavage and the laminae are flexible. It is found in granites, syenites, gneisses, and crystalline limestones. Molybdenite is an important ore of molybdenum. The major sources are quartz veinlets in granite at Climax, Colo., and copper mines in Utah, New Mexico, and Arizona. Minor amounts are recovered in Mexico, Chile, Canada, and Norway.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1E1-molybdnt" title="Facts and information about molybdenite">molybdenite</a>

Give this article a thumbs-up on StumbleUpon

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"molybdenite." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 30 Nov. 2009 <http://www.encyclopedia.com>.

"molybdenite." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (November 30, 2009). http://www.encyclopedia.com/doc/1E1-molybdnt.html

"molybdenite." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved November 30, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-molybdnt.html

Learn more about citation styles

molybdenite

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

molybdenite (molybdenum sulphide, MoS₂) Sulphide mineral, found in pegmatites, igneous and metamorphic rocks. It is a major ore of molybdenum. It has hexagonal system tabular prisms, flakes, and fine granules. It is lead-grey in colour with a metallic lustre. Hardness 1–1.5; r.d. 4.7.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O142-molybdenite" title="Facts and information about molybdenite">molybdenite</a>

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"molybdenite." World Encyclopedia. 2005. Encyclopedia.com. 30 Nov. 2009 <http://www.encyclopedia.com>.

"molybdenite." World Encyclopedia. 2005. Encyclopedia.com. (November 30, 2009). http://www.encyclopedia.com/doc/1O142-molybdenite.html

"molybdenite." World Encyclopedia. 2005. Retrieved November 30, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-molybdenite.html

Learn more about citation styles

molybdenite

A Dictionary of Earth Sciences | 1999 | | Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

molybdenite Mineral, MoS₂; sp. gr. 4.6–4.8; hardness 1.0–1.5; hexagonal; pale bluish to lead-grey; greenish-grey streak; metallic lustre; crystals hexagonal, often tabular grains, and it also occurs as foliated and scaly masses; cleavage perfect basal {0001}; quite widespread but seldom occurs in large quantities, found as an accessory mineral in granites, quartz veins, and pegmatites, in contact metamorphic zones with garnets, pyroxenes, scheelite, pyrite, and tourmaline, and in veins with scheelite, wolframite, cassiterite, and fluorite. It is a major ore mineral for molybdenum.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O13-molybdenite" title="Facts and information about molybdenite">molybdenite</a>

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

AILSA ALLABY and MICHAEL ALLABY. "molybdenite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 30 Nov. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "molybdenite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (November 30, 2009). http://www.encyclopedia.com/doc/1O13-molybdenite.html

AILSA ALLABY and MICHAEL ALLABY. "molybdenite." A Dictionary of Earth Sciences. 1999. Retrieved November 30, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-molybdenite.html

Learn more about citation styles

Free newspaper and magazine articles

	Fitch Assigns 'BBB' IDR to Molymet; Outlook Stable. Business Wire; 11/7/2007
	Fitch Assigns 'A+chl' National Scale Rating to Molymet. Business Wire; 6/11/2008
	Pacific Cascade Intersects 0.136% Molybdenum Over 26.87 Meters With 0.306% Over 9.47 Meters. Business Wire; 10/11/2007

Facts and information from other sites

Related articles from newspapers, magazines, and more

	Molybdenite: Allies Mine, Deepwater, New England Region, New South Wales, Australia.(CONNOISSEUR'S CHOICE) Magazine article from: Rocks & Minerals; 3/1/2007; ; 700+ words ; ...metal's only significant ore mineral, molybdenite. However, despite its wide geologic...and the literally thousands of tons of molybdenite-bearing ores mined daily around the...localities are currently active. Most molybdenite specimens seen in collections or dealers...
	Structural Change of Mechanically Activated Molybdenite and the Effect of Mechanical Activation on Molybdenite Magazine article from: Metallurgical and Materials Transactions; 12/1/2004; ; 700+ words ; ...get nonactivated molybdenite. Mechanically activated molybdenites are obtained by...grinding nonactivated molybdenite as in Reference...mechanically activated molybdenites (shown in Figure...mechanically activated molybdenite increases gradually...
	Oxidation and metal-insertion in molybdenite surfaces: evaluation of charge-transfer mechanisms and dynamics.(Research article) Magazine article from: Geochemical Transactions; 6/5/2008; ; 700+ words ; ...lubricants and catalysts [1, 2]. Molybdenite (MoS 2 ) belongs to the family of the...anisotropic 2D material after graphite [3]. Molybdenite is the essential ore mineral of the...paramolybdate, and molybdenum trioxide [5]. Molybdenite-based formulations are extensively...
	Re-Os Dating of Molybdenite from the Hnilec Permian Granite-Related Mineralisation - its Tectonic Significance (Gemeric Unit, Slovakia) Magazine article from: Geolines; 1/1/2004; ; 700+ words ; ...187Re-18Os chronometer applied to molybdenite (MoS^sub 2^) and/or oxide minerals...enigmatic. Here we present new Re-Os molybdenite age from the Hnilec deposit and together...According to the mineralogical study the molybdenite was formed during retrograde Fe dolomite...
	Gowest Encouraged by Discovery of New Moly Occurrences at Molybdenite Lake. News Wire article from: Canadian Corporate News; 10/11/2007; 700+ words ; ...been working on the evaluation of their Molybdenite Lake property. Careful and systematic...discovery of five additional significant molybdenite occurrences (to view the accompanying...and mode of deposition of the mineral molybdenite - did a geological interpretation of...
	Gowest Reports Surface Sampling Results From Molybdenite Lake; Bulk Samples Average 0.09% Mo; Two Bulks Return 0.18% Mo.(Financial report) News Wire article from: Canadian Corporate News; 2/28/2008; 700+ words ; ...sampling from the Company's wholly owned Molybdenite Lake property, 15 kilometres northwest...adjoining to the east and southeast of Molybdenite Lake. This includes 11 bulk samples...average a significant 0.14% Mo. The molybdenite (MoS2) mineralization around Molybdenite...
	Hurdal (Norway) Molybdenite Project Acquired by Crew Newspaper article from: CCNMatthews Newswire; 1/13/2005; 700+ words ; ...the exclusive title for two porphyry-molybdenite properties located in the Oslo region...The Hurdal project is the largest molybdenite deposit in Europe. At present molybdenum...The recognition of stockwork-type molybdenite mineralization led to the discovery...
	Hurdal (Norway) Molybdenite Project Acquired by Crew. News Wire article from: Canadian Corporate News; 1/13/2005; 700+ words ; ...the exclusive title for two porphyry-molybdenite properties located in the Oslo region...The Hurdal project is the largest molybdenite deposit in Europe. At present molybdenum...The recognition of stockwork-type molybdenite mineralization led to the discovery...
	U-Pb tantalite, Re-Os molybdenite, and [sup.40]Ar/[sup.39]Ar muscovite dating of the Brazil Lake pegmatite, Nova Scotia: a possible shear-zone related origin for an LCT-type pegmatite. Magazine article from: Atlantic Geology; 3/1/2005; ; 700+ words ; ...the pegmatite, samples of tantalite, molybdenite, and muscovite were collected for U...or -] 1-2 Ma). In contrast, molybdenite from quartzite adjacent to the pegmatite...youngest ~ 365 Ma), the 353 Ma Re-Os molybdenite age, and the oldest [sup.40]Ar...
	Globex to Drill 100% Owned Molybdenite Zone Newspaper article from: CCNMatthews Newswire; 10/17/2006; 587 words ; ...out on Globex's 100% owned Gayhurst molybdenite zone in Gayhurst township, Quebec...the previously partially delineated molybdenite zones. Consulting geologist, Luciano...indicates the potential for economic molybdenite mineralization persists below the 100...