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Cobaltpentlandite

Collectors Summary

Color bronzegelb-met.
Hardness (Mohs) 4.00 - 4.50
Solubility +++ HNO3
Crystal System kubisch, Fm3m

Chemism

Chem­ical formula

Co9S8

Chem­ical com­po­si­tion

Kobalt, Schwefel

Unit weight: 786.9228081 u; Number of atoms in the formula: 17

Info

Empirical formula:

Co9S8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

32.60

8

47.06

32.0655000

256.5240000

Cobalt

Co

67.40

9

52.94

58.9332009

530.3988081

Anal­y­sis wt%

Co : 46.52, Ni : 9.11, Fe : 11.57, S : 32.80 (Ref: American Mineralogist 59)

Strunz 9th edi­tion incl. updates

2.BB.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
B: Metallsulfide, M : S > 1 : 1 (hauptsächlich 2 : 1)
B: mit Nickel (Ni)
15:Pentlandit-Gruppe

Lapis Clas­sifica­tion

II/B.16-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
B: Sulfide, Selenide und Telluride mit Verhältnis Metall : S,Se,Te > 1:1
16: Sulfide mit vorherrschend Nickel, Kobalt, Rhodium und Palladium; Pentlandit-Gruppe

Clas­sifica­tion by Hölzel

2.BB.305

2: SULFIDES
B: Sulfides (etc) with Me/S > 1/1 (mostly 2/1)
B: With Ni,Fe,Co,Cu
3: Pentlandite-Group

Dana 8th edi­tion

02.07.01.03

02: Sulfide Minerals
07: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=9:8
01: Pentalndite Group (Isometric: Fm3m)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Pentlandite Group

Optical Properties

Color

bronzegelb-met.

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

225

Space Group

Fm3m

Cell param­e­ters a (Å)

9.973

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

4

Volumne (ų)

991.922

X-Ray Pow­der Diffrac­tion

5.75(50),
3.008(100),
2.878(50),
2.288(40),
1.918(80),
1.763(100),
1.298(40),
1.018(50)

XRD chart Cobaltpentlandite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4.00 - 4.50

VHN (Hard­ness Vick­ers)

345 (25g)

Density (g/cm³)

5.34 (berechnet)

5.269 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HNO3

Preface

Author (Name, Year)

Kouvo & Huhma & Vuorelainen, 1959

References

Handbook of Mineralogy (Anthony et al.), 1 (1990), 104

Kouva O, Huhma M, Vuorelainen Y (1959) A natural cobalt analog of pentlandite, American Mineralogist 44, 897-900

Name changed from cobalt pentlandite: Burke E A J (2008) Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks, The Mineralogical Record 39, 131-135

IMA group assignments


 
 
Ag(Fe,Ni)8S8
kubisch
Fm3m

 
 
Co9S8
kubisch
Fm3m

 
 
(Cu,Fe,Ag)9(Se,S)8
kubisch
Fm3m

 
 
Rh3Ni32S32
kubisch
F43m

 
 
(Fe,Ni)9S8
kubisch
Fm3m

 
 
Cu(Fe,Ni)8S8
 
 

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Actuality: 21. Oct 2021 - 12:40:31

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Sugakiite

Cu(Fe,Ni)8S8

2.BB.15

Geffroyite

(Cu,Fe,Ag)9(Se,S)8

kubisch : m3m : Fm3m

2.BB.15

Shadlunite

(Pb,Cd)(Fe,Cu)8S8

kubisch : m3m : Fm3m

2.BB.15

Godlevskite

(Ni,Fe)9S8

orthorhombisch : 222 : C222

2.BB.15

Pentlandite

(Fe,Ni)9S8

kubisch : m3m : Fm3m

2.BB.15

Kharaelakhite

(Cu,Pt,Pb,Fe,Ni)9S8

orthorhombisch : mmm, mm2, 222 : Pmmm, Pmm2, P222

2.BB.15

Cobaltpentlandite

Co9S8

kubisch : m3m : Fm3m

2.BB.15

Manganoshadlunite

(Mn,Pb,Cd)(Cu,Fe)8S8

kubisch : m3m : Fm3m

2.BB.15

Argentopentlandite

Ag(Fe,Ni)8S8

kubisch : m3m : Fm3m

2.BB.15

Ferhodsite

(Fe,Rh,Ni,Ir,Cu,Pt)9S8

2.BB.15a

Oberthürite

Rh3Ni32S32

kubisch : 43m : F43m

2.BB.15a

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Pentlandite

(Fe,Ni)9S8

kubisch : m3m : Fm3m

II/B.16-010

Cobaltpentlandite

Co9S8

kubisch : m3m : Fm3m

II/B.16-020

Argentopentlandite

Ag(Fe,Ni)8S8

kubisch : m3m : Fm3m

II/B.16-030

Geffroyite

(Cu,Fe,Ag)9(Se,S)8

kubisch : m3m : Fm3m

II/B.16-040

Manganoshadlunite

(Mn,Pb,Cd)(Cu,Fe)8S8

kubisch : m3m : Fm3m

II/B.16-050

Shadlunite

(Pb,Cd)(Fe,Cu)8S8

kubisch : m3m : Fm3m

II/B.16-060

Palladseite

Pd17Se15

kubisch : m3m : Pm3m

II/B.16-070

'Miassite'

Rh17S15

kubisch : m3m : Pm3m

II/B.16-080

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Pentlandite

(Fe,Ni)9S8

kubisch : m3m : Fm3m

2.BB.300

Cobaltpentlandite

Co9S8

kubisch : m3m : Fm3m

2.BB.305

Shadlunite

(Pb,Cd)(Fe,Cu)8S8

kubisch : m3m : Fm3m

2.BB.310

Manganoshadlunite

(Mn,Pb,Cd)(Cu,Fe)8S8

kubisch : m3m : Fm3m

2.BB.315

Geffroyite

(Cu,Fe,Ag)9(Se,S)8

kubisch : m3m : Fm3m

2.BB.320

Argentopentlandite

Ag(Fe,Ni)8S8

kubisch : m3m : Fm3m

2.BB.340

Sugakiite

Cu(Fe,Ni)8S8

2.BB.350

Samaniite

Cu2Fe5Ni2S8

tetragonal : 4/mmm

2.BB.355

Horomanite

Fe6Ni3S8

tetragonal : 4/mmm : P4/mmm

2.BB.360

Ferhodsite

(Fe,Rh,Ni,Ir,Cu,Pt)9S8

2.BB.365

Godlevskite

(Ni,Fe)9S8

orthorhombisch : 222 : C222

2.BB.370

Kharaelakhite

(Cu,Pt,Pb,Fe,Ni)9S8

orthorhombisch : mmm, mm2, 222 : Pmmm, Pmm2, P222

2.BB.380

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Pentlandite

(Fe,Ni)9S8

kubisch : m3m : Fm3m

02.07.01.01

Argentopentlandite

Ag(Fe,Ni)8S8

kubisch : m3m : Fm3m

02.07.01.02

Cobaltpentlandite

Co9S8

kubisch : m3m : Fm3m

02.07.01.03

Shadlunite

(Pb,Cd)(Fe,Cu)8S8

kubisch : m3m : Fm3m

02.07.01.04

Geffroyite

(Cu,Fe,Ag)9(Se,S)8

kubisch : m3m : Fm3m

02.07.01.06

Mackinawite

(Fe,Ni)1+xS {x = 0 - 0.07}

tetragonal : 4/mmm : P4/nmm

02.07.02.01

Yarrowite

Cu1.2S

trigonal : 3m, 32, 3m : P3m1, P321, P3m1

02.07.03.01

Godlevskite

(Ni,Fe)9S8

orthorhombisch : 222 : C222

02.07.04.01

Kharaelakhite

(Cu,Pt,Pb,Fe,Ni)9S8

orthorhombisch : mmm, mm2, 222 : Pmmm, Pmm2, P222

02.07.05.01

Tischendorfite

Pd8Hg3Se9

orthorhombisch : mmm : Pmmn

02.07.06.01

Alternative Name

English

Cobalt pentlandite

French

Cobalt-Pentlandite

Cobalt-Pentlandite

German

Kobalt-Pentlandit

CNMNC symbol

Symbol

Copn

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Kobaltpentlandit
Google-Bilder-Suche - search for: Kobaltpentlandit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Kobaltpentlandit

English pages

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Handbook-of-Mineralogy - search for: Cobaltpentlandite
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RRUFF - References and PDF downloads - search for: Cobaltpentlandite
American-Mineralogist-Crystal-Structure-Database - search for: Cobaltpentlandite
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Russian pages

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Mineral Dealer

German pages

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