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
Cleavage	absent - octahedral parting
Fracture	Conchoidal
Mohs Scale hardness	3.5 - 4
Luster	metallic
Refractive index	opaque
Pleochroism	N/A
Streak	light bronze-brown
Specific gravity	4.6 - 5.0
Fusibility	1.5 - 2
Solubility	?
Other Characteristics	becomes 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 cobalt. Pentlandite Nickel is a silvery metallic element. ... Pentlandite Nickel is a silvery metallic element. ... This article is about minerals in the geologic sense; for nutrient minerals see dietary mineral; for the band see Mineral (band). ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... General Name, Symbol, Number nickel, Ni, 28 Chemical series transition metals Group, Period, Block 10, 4, d Appearance lustrous, metallic Atomic mass 58. ... In chemistry, a sulfide (sulphide in British and Canadian English) is a chemical compound or combination of sulfur with an oxidation number of -2, with another chemical element or a radical thereof. ... In mineralogy, shape and size give rise to descriptive terms applied to the typical appearance, or habit of crystals. ... Rose des Sables (Sand Rose), formed of gypsum crystals In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ... In crystallography, the cubic crystal system (or isometric crystal system) is the most symmetric of the 7 crystal systems. ... Cleaveage, in mineralogy, is the tendency of crystalline materials to split along definite planes, creating smooth surfaces, of which there are several named types: Basal cleavage: cleavage parallel to the base of a crystal, or to the plane of the lateral axes. ... A fracture is the separation of a body into two, or more, pieces under the action of stress. ... Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer. ... The refractive index of a material is the factor by which electromagnetic radiation is slowed down (relative to vacuum) when it travels inside the material. ... Pleochroism is an optical phenomenon where due to double refraction of light by a colored gem or crystal, the light is divided into two paths which are polarized at a 90° angle to each other. ... In any mineral, its streak refers to the color of its powder. ... Relative density (also known as specific gravity) is a measure of the density of a material. ... Fusibility is the ease with which a material will melt. ... A solvent is a liquid that dissolves a solid, liquid, or gaseous solute, resulting in a solution. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... General Name, Symbol, Number nickel, Ni, 28 Chemical series transition metals Group, Period, Block 10, 4, d Appearance lustrous, metallic Atomic mass 58. ... This article is on the periodic element. ...

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. In crystallography, the cubic crystal system (or isometric crystal system) is the most symmetric of the 7 crystal systems. ... Relative density (also known as specific gravity) is a measure of the density of a material. ...

Pentlandite is the chief ore of nickel. Typically associated with pyrrhotite, niccolite, biotite, millerite, pyrite, and chalcopyrite Major occurrence is the Sudbury deposit in Ontario, Canada. An ore is a mineral deposit containing a metal or other valuable resource in economically viable concentrations. ... Pyrrhotite is an unusual iron sulfide mineral with a variable iron content: Fe(1-x)S (x = 0 to 0. ... Niccolite or nickeline is a mineral consisting of nickel arsenide, NiAs, containing 43. ... A Biotite slice Biotite is a common phyllosilicate mineral that contains potassium, magnesium, iron and aluminium. ... Millerite can have the following meanings: Millerites, a diverse family of denominations and Bible study movements that have arisen since the middle of the 19th century, traceable to the Adventist movement sparked by the apocalyptic teachings of William Miller. ... The mineral pyrite, or iron pyrite, is iron disulfide, FeS2. ... Chalcopyrite is a copper iron sulfide mineral that crystallizes in the tetragonal system. ... Sudbury Basin is the oval structure, next to the much younger lake-filled Wanapitei crater The Sudbury Basin is the second largest impact crater on earth, and a major geologic structure in Ontario, Canada. ... Motto: Ut Incepit Fidelis Sic Permanet (Loyal it began, loyal it remains) Other Canadian provinces and territories Capital Toronto Largest city Toronto Lieutenant Governor James K. Bartleman Premier Dalton McGuinty (Liberal) Area 1,076,395 km² (4th)  - Land 917,741 km²  - Water 158,654 km² (14. ...

References and external links

• Dana's Manual of Mineralogy ISBN 0471032883
• Mineral Galleries: Chromite
• Webmineral.com
• Mindat.org