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Cooperite (Cooperit)

Collectors Summary

Color stahlgrau metallisch
Lustre Metallglanz
Hardness (Mohs) 4 - 5
Cleavages {011}
Fracture muschelig
Solubility - Säuren, Königswasser
Crystal System tetragonal, P42/mmc

Chemism

Chemical formula

PtS

Chemical composition

Platin, Schwefel

Unit weight: 227.1437 u; Number of atoms in the formula: 2

Info

Empirical formula:

PtS

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

14.12

1

50.00

32.0655000

32.0655000

Platinum

Pt

85.88

1

50.00

195.0782000

195.0782000

Analysis wt%

Ø Pt : 83.50, Pd : 1.40, Ni : 1.20, S : 14.50, PLT : 84.90 (Ref: American Mineralogist 78)

Strunz 9th edition incl. updates

2.CC.30

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
C: mit Nickel (Ni), Eisen (Fe), Cobalt (Co), usw.
30:Braggit-Gruppe

Lapis Classification

II/C.25-030

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

Classification by Hölzel

2.CC.150

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
C: With Pd,Pt, etc. - Coordination Number ~[4], Planar
1: Braggite-Group

Dana 8th edition

02.08.05.01

02: Sulfide Minerals
08: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
05: Cooperite Group

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

stahlgrau metallisch

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Pleochroism

schwach; cremeweiß zu blauweiß

Anisotropism

stark; grüngrau zu weißgelb zu braungrau und braun

Reflectivity: (Lambda nm) ↓, ↑, Ø

(400) 40.90, 46.60, 43.75
(420) 42.00, 47.30, 44.65
(440) 42.60, 47.90, 45.25
(460) 42.70, 48.30, 45.50
(480) 42.20, 48.40, 45.30
(500) 41.50, 48.20, 44.85
(520) 40.40, 47.80, 44.10
(540) 39.40, 47.20, 43.30
(560) 38.50, 46.60, 42.55
(580) 37.80, 46.10, 41.95
(600) 37.20, 45.50, 41.35
(620) 36.60, 45.10, 40.85
(640) 36.00, 44.70, 40.35
(660) 35.60, 44.20, 39.90
(680) 35.10, 43.70, 39.40
(700) 34.60, 43.30, 38.95

Reflection chart Cooperite

Reflectivity Ø

42.63

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

131

Space Group

P42/mmc

Cell parameters a (Å)

3.465

Cell parameters b (Å)

-

Cell parameters c (Å)

6.104

Cell parameters a/b or c/a

1.762

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volumne (ų)

73.286

X-Ray Powder Diffraction

3.013(100),
2.450(60),
1.911(80),
1.753(60),
1.732(50),
1.507(70),
1.231(50),
1.030(40)

XRD chart Cooperite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4 - 5

VHN (Hardness Vickers)

743–1018; Ø 851 (100g)

Density (g/cm³)

10.2 (berechnet) 9.5 (gemessen)

10.293 ( ρ calc. Mineralienatlas )

Cleavages

{011}

Fracture

muschelig

Instability

- Säuren, Königswasser

Preface

Name from

Der Name ehrt den Südafrikanischen Metallurgen Richard A. Cooper (1890–1972), aus Johannesburg, der das Mineral zuerst beschrieb.

Author (Name, Year)

Wartenweiler, 1928

References

Handbook of Mineralogy (Anthony et al.), 1 (1990), 107

Journal of the Chemical, Metallurgical and Mineralogical Society of South Africa 28, 281-283

Cabri, L.J., Laflamme, J.H.G., Stewart, J.M., Turner, K., and Skinner, B.J. - On cooperite, braggite, and vysotskite. American Mineralogist 63 (1978), 832-839.

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

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.30

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

2.CC.30

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.30

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

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

II/C.25-010

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

II/C.25-020

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

II/C.25-030

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

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.100

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.110

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

2.CC.150

Jacutingaite

Pt2HgSe3

trigonal : 3m : P3m1

2.CC.180

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

Galena

PbS

kubisch : m3m : Fm3m

02.08.01.01

Clausthalite

PbSe

kubisch : m3m : Fm3m

02.08.01.02

Altaite

PbTe

kubisch : m3m : Fm3m

02.08.01.03

Alabandite

MnS

kubisch : m3m : Fm3m

02.08.01.04

Oldhamite

(Ca,Mg,Fe,Mn)S

kubisch : m3m : Fm3m

02.08.01.05

Niningerite

(Mg,Fe2+,Mn)S

kubisch : m3m : Fm3m

02.08.01.06

Borovskite

Pd3SbTe4

kubisch : m3m : Fm3m

02.08.01.07

Crerarite

(Pt,Pb)Bi3(S,Se)4-x

kubisch : m3m : Fm3m

02.08.01.08

Keilite

(Fe,Mg,Mn,Ca,Cr)S

kubisch : m3m : Fm3m

02.08.01.09

Sphalerite

(Zn,Fe)S

kubisch : 43m : F43m

02.08.02.01

Stilleite

ZnSe

kubisch : 43m : F43m

02.08.02.02

Metacinnabar

HgS

kubisch : 43m : F43m

02.08.02.03

Tiemannite

HgSe

kubisch : 43m : F43m

02.08.02.04

Coloradoite

HgTe

kubisch : 43m : F43m

02.08.02.05

Hawleyite

CdS

kubisch : 43m : F43m

02.08.02.06

Polhemusite

(Zn,Hg)S

02.08.03.01

Xingzhongite

(Pb,Cu,Fe)(Ir,Pt,Rh)2S4

kubisch : m3m : Fd3m

02.08.04.01

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

02.08.05.01

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

02.08.05.02

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

02.08.05.03

Polarite

Pd(Pb,Bi)

orthorhombisch : mm2 : Ccm21

02.08.06.01

Greenockite

CdS

hexagonal : 6mm : P63mc

02.08.07.02

Cadmoselite

CdSe

hexagonal : 6mm : P63mc

02.08.07.03

Rambergite

gamma-MnS

hexagonal : 6mm : P63mc

02.08.07.04

Hypercinnabar

HgS

02.08.08.01

Other languages

German

Cooperit

Spanish

Cooperita

English

Cooperite

French

Cooperite

Russian

Куперит

Japanese

硫白金鉱

Traditional Chinese

硫鉑礦

Simplified Chinese

硫铂矿

Alternative Name

Cooperite (of Wartenweiler)

Cooperite (of Wartenweiler)

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

German pages

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

English pages

Mindat - search for: Cooperite
Webmineral - search for:Cooperite
Handbook-of-Mineralogy - search for: Cooperite
RRUFF - Raman, XRD and other mineral data - search for: Cooperite
RRUFF - References and PDF downloads - search for: Cooperite
American-Mineralogist-Crystal-Structure-Database - search for: Cooperite
Athena - search for: Cooperite

Russian pages

Webmineral.ru - search for: Куперит

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Cooperit
Bosse - search for: Cooperit

Locations with GPS information




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