Ferroskutterudite Mineral Data (original) (raw)

General Ferroskutterudite Information

Help on Chemical Formula: Chemical Formula:

(Fe,Co)As3

Help on Composition: Composition:

Molecular Weight = 276.94 gm

Iron 12.10 % Fe

Cobalt 8.38 % Co

Nickel 0.04 % Ni

Arsenic 78.13 % As

Sulfur 1.34 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Fe2+0.6Co0.39Ni0.002As2.88S0.11

Help on Environment: Environment:

Found in dolomite-calcite veins with other arsenides. Skutterudite group.

Help on IMA Status: IMA Status:

Approved IMA 2006 (Dana # Added)

Help on Locality: Locality:

Konsomolsk mine, Talnakh, Norilsk, Russia Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named as the Fe analog of skutterudite.

Help on Synonym: Synonym:

IMA2006-032

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Ferroskutterudite Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 8.17, Z = 8; V = 545.34 Den(Calc)= 6.75

Help on Crystal System: Crystal System:

Isometric - DiploidalH-M Symbol (2/m 3) Space Group: Im3

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.858(1)(310), 2.182(0.9)(321), 1.602(0.7)(510),1.829(0.7)(420), 1.402(0.6)(530), 1.667(0.5)(422),

Physical Properties of Ferroskutterudite

Help on Color: Color:

Tin white.

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Help on Hardness: Hardness:

6-6.5 - Orthoclase-Pyrite

Help on Luster: Luster:

Metallic

Optical Properties of Ferroskutterudite

Help on RL Anisotrophism: RL Anisotrophism:

None.

Help on RL Bireflectance: RL Bireflectance:

None.

Help on RL Color: RL Color:

White.

Help on RL Pleochroism: RL Pleochroism:

None.

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Ferroskutterudite in Air

λ R ∑ R(λ)
400 nm 57.20
420 nm 57.60
440 nm 58.00
460 nm 58.20
470 nm 58.20
480 nm 58.20
500 nm 58.00
520 nm 57.60
540 nm 57.30
546 nm 57.20
560 nm 56.90
580 nm 56.40
589 nm 56.20
600 nm 56.00
620 nm 55.50
640 nm 55.20
650 nm 54.90
660 nm 54.70
680 nm 54.30
700 nm 53.80

Calculated Relative Intensity Colors of Ferroskutterudite in Air

RelativeIntensity 0% 20% 40% 60% 80% 100% 120% 140% 160%
R

Calculated Properties of Ferroskutterudite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=6.02 gm/cc
note: Specific Gravity of Ferroskutterudite =6.75 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0026706206
Boson Index = 0.9973293794

Help on Photoelectric: Photoelectric:

PEFerroskutterudite = 63.60 barns/electron
U=PEFerroskutterudite x rElectron Density= 382.77 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferroskutterudite is Not Radioactive

Ferroskutterudite Classification

Help on Dana Class: Dana Class:

02.12.17.04 (02)Sulfides - Including Selenides and Tellurides

(02.12)where Am Bn Xp, with (m+n):p=1:2

(02.12.17)Skutterudite Series

02.12.17.01 Skutterudite (Co,Ni)As3-x I m3 2/m 3

02.12.17.02 Nickelskutterudite (Ni,Co)As3-x I m3 2/m 3

02.12.17.03 Kieftite CoSb3 I m3 2/m 3

02.12.17.04 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 Ferroskutterudite Information

Help on References: References:

NAME( AmMin, v93:1687) PHYS. PROP.(AmMin, v93:1687) OPTIC PROP.(AmMin, v93:1687)

Help on See Also: See Also:

Links to other databases for Ferroskutterudite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Ferroskutterudite Specimen Label here :

Ferroskutterudite

(Fe,Co)As3
Dana No: 02.12.17.04 Strunz No: 02.EC.05
Locality:

Notes: