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Ferroskutterudite (Ferroskutterudit)

Collectors Summary

Color silbrig
Streak color schwarz
Lustre Metallglanz
Hardness (Mohs) 5.5 - 6
Crystal System kubisch, Im3
Morphology Das Mineral bildet maximal 0,1mm große Aggregate.

Chemism

Chemical formula

FeAs3

Additional chem. information

Skutterudit-Gruppe

Chemical composition

Arsen, Eisen

Unit weight: 280.610006 u; Number of atoms in the formula: 4

Info

Empirical formula:

FeAs3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Iron

Fe

19.90

1

25.00

55.8452000

55.8452000
Arsenic

As

80.10

3

75.00

74.9216020

224.7648060

Analysis wt%

Fe : 12.09, Co : 8.38, As : 78.01, S : 1.34 (Ref: Doklady Akademiia Nauk, SSSR 2007)

Strunz 9th edition incl. updates

2.EC.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfoarsenide, Sulfoantimonide, Sulfobismuthide)
E: Metallsulfide mit M:S >= 1:2
C: M:S = 1:>2
05:Skutterudit-Gruppe

Lapis Classification

II/D.29-005

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
D: Sulfide mit Metall : S,Se,Te < 1:1

Classification by Hölzel

2.EC.130

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
C: Me/S=1/3 With Co,Ni
1: Skutterudite-Group

IMA status

Perowskit-Supergruppe ⇒ Nicht stöchiometrische Perowskite ⇒ Skutterudit-Subgruppe

Mineral status

anerkanntes Mineral

Optical Properties

Color

silbrig

Streak color

schwarz

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Pleochroism

kein

Crystallography

Crystal System

kubisch

Class (H-M)

m3

Space Group number

204

Space Group

Im3

Cell parameters a (Å)

8.17

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

545.339

X-Ray Powder Diffraction

5.8(3), 3.34(4), 2.585(10), 2.182(9), 1.928(4), 1.829(7), 1.667(5), 1.602(7), 1.402(6)
XRD chart Ferroskutterudite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Morphology

Das Mineral bildet maximal 0,1mm große Aggregate.

Physical Properties

Hardness (Mohs)

5.5 - 6

VHN (Hardness Vickers)

875 (50g)

Density (g/cm³)

6.74 berechnet

6.835 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Russland/Sibirien, Föderationskreis/Krasnojarsk (Krasnojarski), Krai/Taimyrhalbinsel (Tajmyr)/Putoran-Plateau/Noril'sk/Talnakh/Komsomol'skii Mine (Komsomolsky Mine)

Preface

Name from

chemischer Zusammensetzung Eisen (lat. ferrum) und der Zugehörigkeit zur Skutterudit Gruppe

Author (Name, Year)

Julia D. Grtisenko, 2006

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H301+H331: Giftig bei Verschlucken oder Einatmen., H410: Sehr giftig für Wasserorganismen mit langfristiger Wirkung., P261: Einatmen von Staub / Rauch / Gas / Nebel / Dampf / Aerosol vermeiden., P273: Freisetzung in die Umwelt vermeiden., P301+P310: Bei Verschlucken: Sofort Giftinformationszentrum, Arzt oder … anrufen., P311: Giftinformationszentrum, Arzt oder … anrufen., P501: Inhalt / Behälter … zuführen.

References

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.
Mineralien Welt 04/08, Steffen Jahn, Die neuen Mineralien 2007 - 2008

Other languages

German

Ferroskutterudit

English

Ferroskutterudite

Russian

Ферроскуттерудит

Simplified Chinese

铁方钴矿

CNMNC (IMA)-Number

IMA 2006-032

CNMNC symbol

Symbol

Fskt

Locations with GPS information

IDs

GUSID (Global unique identifier short form) NV-WoBP4A02FwgoS-zXsFg
GUID (Global unique identifier) A0965F35-F813-4D03-85C2-0A12FB35EC16
Database ID 4382