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Ferroskutterudite

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Formula:
(Fe,Co)As3
Colour:
Tin white
Lustre:
Metallic
Crystal System:
Isometric
Name:
Named in 2007 by Ernst M. Spiridonov, Yulia D. Gritsenko, and Inna Michailovna Kulikova for the ferroan analogue of skutterudite.
The iron analogue of Nickelskutterudite and Skutterudite.

See also chathamite.


Hide all sections | Show all sections

Classification of FerroskutteruditeHide

Approved
Approval Year:
2006
2.EC.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
C : M:S = 1:>2
2.12.18.4

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2

Physical Properties of FerroskutteruditeHide

Metallic
Transparency:
Opaque
Colour:
Tin white
Hardness:
VHN50=700 - 1050 kg/mm2 - Vickers

Optical Data of FerroskutteruditeHide

Type:
Isotropic
Reflectivity:
400nmR=57.2%
420nmR=57.6%
440nmR=58.0%
460nmR=58.2%
480nmR=58.2%
500nmR=58.0%
520nmR=57.6%
540nmR=57.3%
560nmR=56.9%
580nmR=56.4%
600nmR=56.0%
620nmR=55.5%
640nmR=55.2%
660nmR=54.7%
680nmR=54.3%
700nmR=53.8%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 58.2%.
Colour in reflected light:
White, pinkish creamy
Comments:
It is characterized by high relief, which is close to that of skutterudite and safflorite but higher than that of nickelskutterudite.

Chemical Properties of FerroskutteruditeHide

Formula:
(Fe,Co)As3
IMA Formula:
FeAs3

Crystallography of FerroskutteruditeHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Im3m
Cell Parameters:
a = 8.17(1) Å
Unit Cell V:
545.34 ų
Z:
8
Comment:
Its space group differs from that of other skutterudite-group minerals (Im3).

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.8 (30)
3.34 (40)
2.585 (100)
2.182 (90)
1.928 (40)
1.829 (70)
1.667 (50)
1.602 (70)
1.402 (60)

Type Occurrence of FerroskutteruditeHide

General Appearance of Type Material:
Grains up to 0.1 mm in size.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia (no. 3440/1).
Geological Setting of Type Material:
In dolomite-calcite veins.
Associated Minerals at Type Locality:

Synonyms of FerroskutteruditeHide

Other Language Names for FerroskutteruditeHide

Simplified Chinese:铁方钴矿

Relationship of Ferroskutterudite to other SpeciesHide

Other Members of this group:
KieftiteCoSb3Iso.
Nickelskutterudite(Ni,Co,Fe)As3Iso. m3 (2/m 3) : Im3
SkutteruditeCoAs3Iso. m3 (2/m 3) : Im3

Related Minerals - Nickel-Strunz GroupingHide

2.EC.05KieftiteCoSb3Iso.
2.EC.05Nickelskutterudite(Ni,Co,Fe)As3Iso. m3 (2/m 3) : Im3
2.EC.05SkutteruditeCoAs3Iso. m3 (2/m 3) : Im3
2.EC.10PatróniteVS4Mon.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for FerroskutteruditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ralph Jerome Holmes (1947): Higher mineral arsenides of cobalt, nickel, and iron. Bull. Geol. Soc. America, 58, 299-392. [Abs. in http://www.minsocam.org/ammin/AM33/AM33_98.pdf]
Spiridonov, E.M., Gritsenko, Yu.D., Kulikova, I.M. (2007): Ferroskutterudite (Fe,Co)As3: A new mineral species from the dolomite–calcite Veins of the Noril’sk Ore Field. Doklady Akad. Nauk 417, 242-244 [Transactions (Doklady) of the Russian Academy of Sciences/Earth Science Section, 417, 1278-1280.]
Spiridonov, E.M. & Gritsenko, Yu.D. (2007): Ferroskutterudite, nickelskutterudite, and skutterudite from the Norilsk ore field. New Data on Minerals, 42, 16-27.

Internet Links for FerroskutteruditeHide

Localities for FerroskutteruditeHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Saint-Léonard-de-Noblat
Harlaux, M., Marignac, C., Cuney, M., & Mercadier, J. (2015, August). The Puy-les-Vignes breccia pipe (Massif Central, France): a unique occurrence of polymetallic W-Nb±Ta-HREE-Bi-Cu-As±Au-Ag mineralization in the Variscan belt. In 13th Biennial SGA Meeting (Vol. 2, pp. 749-752).
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Schenkenzell
Staude, S., Werner, W., Mordhorst, T., Wemmer, K., Jacob, D.E. and Markl, G. (2012) Multi-stage Ag–Bi–Co–Ni–U and Cu–Bi vein mineralization at Wittichen, Schwarzwald, SW Germany: geological setting, ore mineralogy, and fluid evolution. Mineralium Deposita: 47: 251-276.
Russia (TL)
 
  • Eastern-Siberian Region
    • Krasnoyarsk Krai
      • Taymyrskiy Autonomous Okrug
        • Taimyr Peninsula
          • Putoran Plateau
            • Noril'sk
              • Talnakh Cu-Ni Deposit
Spiridonov, E.M., Gritsenko, Yu.D., Kulikova, I.M. (2007): Ferroskutterudite (Fe,Co)As3: A new mineral species from the dolomite–calcite Veins of the Noril’sk Ore Field. Transactions (Doklady) of the Russian Academy of Sciences/Earth Science Section, 417, 1278-1280.
Mineral and/or Locality  
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