[n] - a mineral (iron-nickel sulphide) that is the chief ore of nickel
Found op http://www.webdictionary.co.uk/definition.php?query=pentlandite
noun a mineral (iron and nickel sulphide) that is the chief ore of nickel
Found op http://wordnetweb.princeton.edu/perl/webwn?s=pentlandite
a nickel and iron sulfide mineral, the chief source of nickel. It is nearly always found with pyrrhotite and similar minerals in silica-poor rocks ... [2 related articles]
Found op http://www.britannica.com/eb/a-z/p/40
Pentlandite is an iron-nickel sulfide, (Fe,Ni)9S8. Pentlandite usually has a Ni:Fe ratio of close to 1:1. It also contains minor cobalt. Pentlandite forms isometric crystals, but is normally found in massive granular aggregates. It is brittle with a hardness of 3.5 - 4 and specific gravity of 4.6 -...
Found op http://en.wikipedia.org/wiki/Pentlandite
pentlandite (pent'lundīt) , 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 M...
Found op http://www.infoplease.com/ce6/sci/A0838211.html
Pentlandite is the most important industrial source of nickel and has the formulae (Fe,Ni)9S8 and a relative hardness of 4. Pentlandite was confirmed as a distinct species in 1856 and named after Joseph Pentland, the discoverer of it.
Found op http://www.probertencyclopaedia.com/browse/HP.HTM
Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/pentlandite/1
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