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Home > Pentlandite


Pentlandite
General
Category Mineral
Chemical formula iron nickel sulfide:(Fe,Ni)9S8
Identification
Color Yellowish bronze
Crystal habit Hexoctahedral rare; massive to granular
Crystal system Isometric
Cleavageabsent - octahedral parting
FractureConchoidal
Mohs Scale hardness 3.5 - 4
Lustermetallic
Refractive indexopaque
Pleochroism N/A
Streak light bronze-brown
Specific gravity 4.6 - 5.0
FusibilityFusibility is the ease with which a material will melt. Materials such as solder requires a low melting point so that when heat is applied to a joint, the solder will melt before the materials being soldered, i. high fusibility. On the other hand, firebri1.5 - 2
Solubility?
Other Characteristicsbecomes magnetic on heating
Major varieties

Pentlandite is a iron- nickel sulfide, (Fe,Ni)9S8. Pentlandite usually has a Ni:Fe ratio of close to 1:1. It also contains minor cobaltiron cobalt nickel Co Rh Full table General Name, Symbol, Numbercobalt, Co, 27 Chemical series transition metals Group, Period, Block 9, 4, d Density, Hardness 8900 kg/m3, 5. 0 Appearance metallic with grey tinge Atomic properties Atomic weight 58. 933200.

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 - 5.0 and is non-magnetic. It has a yellowish bronze color.

Pentlandite is the chief oreAn ore is a mineral deposit containing a metal or other valuable resource in economically viable concentrations. Usually, it is used in the context of a mineral deposit from which it is economical to extract its metallic component. Ores are mined. Ore bod of nickel. Typically associated with pyrrhotitePyrrhotite is an unusual iron sulfide mineral with a variable iron content: FeS (x 0 to 0. The FeS endmember is known as troilite''. Also called magnetic pyrite because the color is similar to pyrite and it is weakly magnetic, the magnetism increases as t, niccolite, biotite, millerite, pyrite, and chalcopyrite Major occurrance is the Sudbury deposit in Ontario, Canada.

References and external links

Minerals Sulfide minerals



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