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pentlandite

 
Dictionary: pent·land·ite   (pĕnt'lən-dīt') pronunciation

n.
A yellowish-brown nickel iron sulfide that is the principal ore of nickel.

[French, after Joseph Barclay Pentland (1797-1873), Irish scientist.]


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Sci-Tech Encyclopedia: Pentlandite
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A mineral having composition (Fe,Ni)9S8. Pentlandite is the major ore of nickel. It is usually massive, showing a well-defined octahedral parting. The hardness is 3.5–4 (Mohs scale) and the specific gravity varies from 4.6 to 5.0, depending on the ratio of iron to nickel; greater amounts of iron cause an increase in the specific gravity. The luster is metallic and the color yellowish bronze. Pentlandite is found at many localities in small amounts, but its chief occurrence is at Sudbury, Ontario, where it is mined on a large scale. See also Nickeline.


 
Columbia Encyclopedia: pentlandite
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pentlandite (pĕnt'ləndīt), yellowish-bronze, opaque mineral, a sulfide of iron and nickel, (Fe,Ni)9S8. It is found in masses nearly always associated with the iron sulfide pyrrhotite. The largest deposit of this important ore of nickel is at Sudbury, Ont. Important deposits are mined in Manitoba, Russia, and W Australia.


WordNet: pentlandite
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Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: a mineral (iron-nickel sulphide) that is the chief ore of nickel


 
 
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pyrrhotite (mineral – in chemistry)
nickel
Sulfide phase equilibria (geochemistry)

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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Sci-Tech Encyclopedia. McGraw-Hill Encyclopedia of Science and Technology. Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved.  Read more
Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/ Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more