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Nickelskutterudite Mineral Data
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General Nickelskutterudite Information
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 Chemical Formula: |
(Ni,Co)As3-x |
| Composition: |
Molecular Weight = 268.53 gm |
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Cobalt 5.49 % Co |
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Nickel 16.39 % Ni |
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Arsenic 78.12 % As |
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______ |
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100.00 % |
| Empirical Formula: |
Ni0.75Co0.25As2.8 |
| Environment: |
Moderate temperature ore veins. |
| IMA Status: |
Valid Species (Pre-IMA) 1892 |
| Locality: |
Schneeberg, Saxony, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the nickel-rich version of skutterudite. |
| Synonym: |
Chloanthite |
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Dienerite |
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Nickel-skutterudite - Renamed Nickelskutterudite by Mineralogical Record, v39 (2008), p131 |
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Nickelskutterudite Image |
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Images:
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Images:
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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 |
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Nickelskutterudite Crystallography
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| Cell Dimensions: |
a = 8.2, Z = 8; V = 551.37 Den(Calc)= 6.47 |
| Crystal System: |
Isometric - Diploidal H-M Symbol (2/m 3) Space Group: I m3 |
| 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), |
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Physical Properties of Nickelskutterudite
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| Cleavage: |
{001} Distinct, {111} Distinct, {011} Parting |
| Color: |
Gray, Tin white, Gray. |
| Density: |
6.5 |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
| Habit: |
Crystalline - Fine - Occurs as well-formed fine sized crystals. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
| Hardness: |
5.5-6 - Knife Blade-Orthoclase |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Metallic |
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Optical Properties of Nickelskutterudite
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| RL Color: |
Yellowish white, somewhat reddish in anisotropic zones. |
| RL Pleochroism: |
Weak to distinct in some zones. |
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Calculated Properties of Nickelskutterudite
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| Electron Density: |
Bulk Density (Electron Density)=5.79 gm/cc
note: Specific Gravity of Nickelskutterudite =6.47 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0018522898
Boson Index = 0.9981477102 |
| Photoelectric: |
PENickelskutterudite = 65.38 barns/electron
U=PENickelskutterudite x rElectron Density= 378.56 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nickelskutterudite is Not Radioactive |
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Nickelskutterudite Classification
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| Dana Class: |
02.12.17.02 (02)Sulfides - Including Selenides and Tellurides |
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(02.12)where Am Bn Xp, with (m+n):p=1:2 |
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(02.12.17)Skutterudite Series |
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02.12.17.01 Skutterudite (Co,Ni)As3-x I m3 2/m 3 |
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02.12.17.02 Nickelskutterudite (Ni,Co)As3-x I m3 2/m 3 |
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02.12.17.03 Kieftite CoSb3 I m3 2/m 3 |
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02.12.17.04 Ferroskutterudite! (Fe,Co)As3 Im3 2/m 3 |
| Strunz Class: |
02.EC.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.E - Metal Sulfides, M:S � 1:2 |
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02.EC -M:S = 1:>2 |
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02.EC.05 Dienerite? Ni3As I 43d 4 3m |
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02.EC.05 Kieftite CoSb3 I m3 2/m 3 |
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02.EC.05 Nickelskutterudite (Ni,Co)As3-x I m3 2/m 3 |
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02.EC.05 Skutterudite (Co,Ni)As3-x I m3 2/m 3 |
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02.EC.05 Ferroskutterudite! (Fe,Co)As3 Im3 2/m 3 |
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Other Nickelskutterudite Information
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| References: |
NAME( Dana7) PHYS. PROP.(Dana7) OPTIC PROP.(AntBidBlaNic1) |
| 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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Print or Cut-and-Paste your Nickelskutterudite Specimen Label here :
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Nickelskutterudite
(Ni,Co)As3-x
Dana No: 02.12.17.02 Strunz No: 02.EC.05
Locality:
Notes:
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