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Stumpflite

Pictures (1 Images total)

Isoferroplatinum (weiß), Geversit (1), Stumpflit(2), Genkinit (3), Sperrylith (4), Tulameenit (5)
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Isoferroplatinum (weiß), Geversit (1), Stumpflit(2), Genkinit (3), Sperrylith (4), Tulameenit (5) (SNr: 9408)  W
Analysed with wavelength-dispersive X-ray WDS

Composite grain of Pt-Fe alloy (white rim; Pt65Fe30), geversite [PtSb2] (1, bluish), stumpflite [Pt(Sb,Bi)] (2, yellowish), genkinite [(Pt,Pd)4Sb3] (3, light brown), sperrylite (4), and tulameen...

Collection: Pol. section No. 9408, Ramdohr collection, Heidelberg.
Copyright: Thomas Oberthür
Contribution: Oberthür 2019-12-14
Locality: Driekop Mine / Sekhukhuneland / Burgersfort / Bushveld Complex / Limpopo, Provinz / Südafrika

Collectors Summary

Color cremfarben
Hardness (Mohs) 5
Crystal System hexagonal, P63/mmc

Chemism

Chem­ical formula

Pt(Sb,Bi)

Chem­ical com­po­si­tion

Antimon, Bismut, Platin

Unit weight: 338.6433705 u; Number of atoms in the formula: 2

Info

Empirical formula:

Pt(Sb0.75Bi0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Antimony

Sb

26.97

0.75

37.50

121.7601000

91.3200750

Platinum

Pt

57.61

1

50.00

195.0782000

195.0782000

Bismuth

Bi

15.43

0.25

12.50

208.9803820

52.2450955

Anal­y­sis wt%

Pt : 57.00, Sb : 26.10, Bi : 16.30, PLT : 57.00 (Ref: Bulletin de Mineralogie 72)

Strunz 9th edi­tion incl. updates

2.CC.05

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.
05:Nickelin-Gruppe

Lapis Clas­sifica­tion

II/C.20-095

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

Clas­sifica­tion by Hölzel

2.CC.390

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
C: With Pd,Pt, etc. - Coordination Number ~[4], Planar
3: Coordination Number ~[3+3] Nickeline-Group

Dana 8th edi­tion

02.08.11.08

02: Sulfide Minerals
08: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
11: Nickeline Group (Hexagonal: P63/mmc)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

cremfarben

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6/mmm

Space Group number

194

Space Group

P63/mmc

Cell param­e­ters a (Å)

4.175

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

5.504

Cell param­e­ters a/b or c/a

1.318

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

2

Volumne (ų)

83.085

X-Ray Pow­der Diffrac­tion

3.618(60),
3.027(100),
2.192(100),
2.088(80),
1.720(40),
1.512(50),
1.224(40),
1.149(50)

XRD chart Stumpflite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5

VHN (Hard­ness Vick­ers)

385 (50g)

Density (g/cm³)

13.52

13.535 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Johan & Picot, 1972

References

Bulletin de la Société Française Minéralogie et de Cristallographie 95 (1972), 610

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

'Imgreite'

NiTe

hexagonal : 6/mmm : P63/mmc

2.CC.05

'Jaipurite'

CoS

hexagonal : 6/mmm : P63/mmc

2.CC.05

Langisite

(Co,Ni)As

hexagonal : 6/mmm : P63/mmc

2.CC.05

Nickeline

NiAs

hexagonal : 6/mmm : P63/mmc

2.CC.05

Vavřínite

Ni2SbTe2

2.CC.05

Achávalite

FeSe

hexagonal : 6/mmm : P63/mmc

2.CC.05

Freboldite

CoSe

hexagonal : 6/mmm : P63/mmc

2.CC.05

Kotulskite

Pd(Te,Bi)2-x {x ≈ 0.4}

hexagonal : 6/mmm : P63/mmc

2.CC.05

Stumpflite

Pt(Sb,Bi)

hexagonal : 6/mmm : P63/mmc

2.CC.05

Sudburyite

(Pd,Ni)Sb

hexagonal : 6/mmm : P63/mmc

2.CC.05

Zlatogorite

CuNiSb2

trigonal : 3m : P3m1

2.CC.05

Sederholmite

NiSe

hexagonal : 6/mmm : P63/mmc

2.CC.05

Sobolevskite

PdBi

2.CC.05

Breithauptite

NiSb

hexagonal : 6/mmm : P63/mmc

2.CC.05

'Hexatestibiopanickelite'

(Ni,Pd)(Te,Sb)

hexagonal : 6/mmm : P63/mmc

2.CC.05

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

Sorosite

Cu1+x(Sn,Sb)

hexagonal : 6/mmm : P63/mmc

II/C.20-005

Langisite

(Co,Ni)As

hexagonal : 6/mmm : P63/mmc

II/C.20-010

Nickeline

NiAs

hexagonal : 6/mmm : P63/mmc

II/C.20-020

Breithauptite

NiSb

hexagonal : 6/mmm : P63/mmc

II/C.20-030

Freboldite

CoSe

hexagonal : 6/mmm : P63/mmc

II/C.20-040

Sederholmite

NiSe

hexagonal : 6/mmm : P63/mmc

II/C.20-050

Vavřínite

Ni2SbTe2

II/C.20-060

'Hexatestibiopanickelite'

(Ni,Pd)(Te,Sb)

hexagonal : 6/mmm : P63/mmc

II/C.20-070

Kotulskite

Pd(Te,Bi)2-x {x ≈ 0.4}

hexagonal : 6/mmm : P63/mmc

II/C.20-080

Sudburyite

(Pd,Ni)Sb

hexagonal : 6/mmm : P63/mmc

II/C.20-090

Stumpflite

Pt(Sb,Bi)

hexagonal : 6/mmm : P63/mmc

II/C.20-095

Polarite

Pd(Pb,Bi)

orthorhombisch : mm2 : Ccm21

II/C.20-100

Sobolevskite

PdBi

II/C.20-110

Ruthenarsenite

(Ru,Ni)As

II/C.20-120

Cherepanovite

RhAs

orthorhombisch : mmm : Pnma

II/C.20-130

Wassonite

TiS

trigonal : 3m : R3m

II/C.20-140

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

Achávalite

FeSe

hexagonal : 6/mmm : P63/mmc

2.CC.300

Freboldite

CoSe

hexagonal : 6/mmm : P63/mmc

2.CC.310

Sederholmite

NiSe

hexagonal : 6/mmm : P63/mmc

2.CC.320

'Imgreite'

NiTe

hexagonal : 6/mmm : P63/mmc

2.CC.325

Langisite

(Co,Ni)As

hexagonal : 6/mmm : P63/mmc

2.CC.340

Nickeline

NiAs

hexagonal : 6/mmm : P63/mmc

2.CC.350

Breithauptite

NiSb

hexagonal : 6/mmm : P63/mmc

2.CC.355

Zlatogorite

CuNiSb2

trigonal : 3m : P3m1

2.CC.360

Sorosite

Cu1+x(Sn,Sb)

hexagonal : 6/mmm : P63/mmc

2.CC.365

'Hexatestibiopanickelite'

(Ni,Pd)(Te,Sb)

hexagonal : 6/mmm : P63/mmc

2.CC.370

Sudburyite

(Pd,Ni)Sb

hexagonal : 6/mmm : P63/mmc

2.CC.380

Sobolevskite

PdBi

2.CC.385

Stumpflite

Pt(Sb,Bi)

hexagonal : 6/mmm : P63/mmc

2.CC.390

Vavřínite

Ni2SbTe2

2.CC.395

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

Smythite

(Fe,Ni)3+xS4 {x≈0-0.3}

trigonal : 3m : R3m

02.08.10.02

Nickeline

NiAs

hexagonal : 6/mmm : P63/mmc

02.08.11.01

Breithauptite

NiSb

hexagonal : 6/mmm : P63/mmc

02.08.11.02

Sederholmite

NiSe

hexagonal : 6/mmm : P63/mmc

02.08.11.03

Sudburyite

(Pd,Ni)Sb

hexagonal : 6/mmm : P63/mmc

02.08.11.05

Kotulskite

Pd(Te,Bi)2-x {x ≈ 0.4}

hexagonal : 6/mmm : P63/mmc

02.08.11.06

Sobolevskite

PdBi

02.08.11.07

Stumpflite

Pt(Sb,Bi)

hexagonal : 6/mmm : P63/mmc

02.08.11.08

Langisite

(Co,Ni)As

hexagonal : 6/mmm : P63/mmc

02.08.11.09

Freboldite

CoSe

hexagonal : 6/mmm : P63/mmc

02.08.11.10

Sorosite

Cu1+x(Sn,Sb)

hexagonal : 6/mmm : P63/mmc

02.08.11.11

Covellite

CuS

hexagonal : 6/mmm : P63/mmc

02.08.12.01

Klockmannite

Cu5.2Se6

hexagonal : 6/mmm : P63/mmc

02.08.12.02

Vulcanite

CuTe

orthorhombisch : mmm : Pmnm

02.08.13.01

Cinnabar

HgS

trigonal : 32, 32 : P3121, P3221

02.08.14.01

Millerite

NiS

trigonal : 3m : R3m

02.08.16.01

Mäkinenite

gamma-NiSe

trigonal : 3m : R3m

02.08.16.02

Ruthenarsenite

(Ru,Ni)As

02.08.17.01

Cherepanovite

RhAs

orthorhombisch : mmm : Pnma

02.08.17.02

Modderite

(Co,Fe)As

orthorhombisch : mmm, mm2 : Pmcn, Pna21

02.08.18.01

Westerveldite

(Fe,Ni,Co)As

orthorhombisch : mmm : Pmcn

02.08.19.01

IMA Number

IMA 1972-013

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