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Cooperite

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.

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)

CNMNC symbol

Symbol

Cpe

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

German pages

DeWikiPedia - search for: Cooperit
Google-Bilder-Suche - search for: Cooperit
Mineralienatlas.de (Forum) - 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
Strahlen.org - search for: Cooperite

Russian pages

Webmineral.ru - search for: Куперит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Cooperit
Crystal-Treasure.com - search for: Cooperit
Bosse - search for: Cooperit
Edelsteine Neuburg - Gundolf Fischer - search for: Cooperit
Geolitho marketplace, by and for collectors - search for: Cooperit

Locations with GPS information