Mineralogy Database

Nickelskutterudite Mineral Data

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General Nickelskutterudite Information

Help on Chemical  Formula: Chemical Formula: (Ni,Co)As3-x
Help on Composition: Composition: Molecular Weight = 268.53 gm
   Cobalt    5.49 %  Co
   Nickel   16.39 %  Ni
   Arsenic  78.12 %  As
           100.00 % 
Help on Empirical Formula: Empirical Formula: Ni0.75Co0.25As2.8
Help on Environment: Environment: Moderate temperature ore veins.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1892
Help on Locality: Locality: Schneeberg, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the nickel-rich version of skutterudite.
Help on Synonym: Synonym: Chloanthite
  Nickel-skutterudite - Renamed Nickelskutterudite by Mineralogical Record, v39 (2008), p131

Nickelskutterudite Image

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  Nickelskutterudite   Dienerite

Comments: Gray, blocky crystals of nickel-skutterudite (chloanthite or dienerite) with minor yellow pyrite.
Location: Gowganda, Ontario, Canada. Scale: Crystal size 3 mm.
© Tom Loomis / Dakota Matrix

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  Nickelskutterudite   Dienerite

Comments: Aggregate of silver-gray nickelskutterudite cubes, some tarnished to a brassy color. Dienerite is now considered to be nickelskutterudite.
Location: Hasserode, Harz, Germany. Scale: See Image.
© Rruff Database

Nickelskutterudite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 8.2, Z = 8; V = 551.37 Den(Calc)= 6.47
Help on Crystal System: Crystal System: Isometric - Diploidal H-M Symbol (2/m 3) Space Group: I m3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.61(1), 1.616(0.9), 1.841(0.9),2.2(0.8), 1.213(0.7), 1.41(0.7), 1.681(0.7),

Physical Properties of Nickelskutterudite

Help on Cleavage: Cleavage: {001} Distinct, {111} Distinct, {011} Parting
Help on Color: Color: Gray, Tin white, Gray.
Help on Density: Density: 6.5
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Metallic

Optical Properties of Nickelskutterudite

Help on RL Color: RL Color: Yellowish white, somewhat reddish in anisotropic zones.
Help on RL Pleochroism: RL Pleochroism: Weak to distinct in some zones.

Calculated Properties of Nickelskutterudite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.79 gm/cc
note: Specific Gravity of Nickelskutterudite =6.47 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0018522898
Boson Index = 0.9981477102
Help on Photoelectric: Photoelectric: PENickelskutterudite = 65.38 barns/electron
U=PENickelskutterudite x rElectron Density= 378.56 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nickelskutterudite is Not Radioactive

Nickelskutterudite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.17)Skutterudite Series Skutterudite (Co,Ni)As3-x I m3 2/m 3 Nickelskutterudite (Ni,Co)As3-x I m3 2/m 3 Kieftite CoSb3 I m3 2/m 3 Ferroskutterudite! (Fe,Co)As3 Im3 2/m 3
Help on  Strunz Class: Strunz Class: 02.EC.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.E - Metal Sulfides, M:S � 1:2
  02.EC -M:S = 1:>2
02.EC.05 Dienerite? Ni3As I 43d 4 3m
02.EC.05 Kieftite CoSb3 I m3 2/m 3
02.EC.05 Nickelskutterudite (Ni,Co)As3-x I m3 2/m 3
02.EC.05 Skutterudite (Co,Ni)As3-x I m3 2/m 3
02.EC.05 Ferroskutterudite! (Fe,Co)As3 Im3 2/m 3

Other Nickelskutterudite Information

Help on References: References: NAME( Dana7) PHYS. PROP.(Dana7) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Nickelskutterudite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Dana No: Strunz No: 02.EC.05





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