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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)
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 tulameenite ~[Pt2CuFe] (5); Driekop Pipe, eastern Bushveld, South Africa; Polished section, reflected light, in oil. Concentrate, collected by Prof. E.F. Stumpfl in 1957. Pol. section No. 9408, Ramdohr collection, Heidelberg.
Copyright: Thomas Oberthür; Contribution: Oberthür
Collection: Pol. section No. 9408, Ramdohr collection, Heidelberg., Collection number: 9408
Location: Südafrika/Limpopo, Provinz/Bushveld Complex/Burgersfort/Sekhukhuneland/Driekop Mine
Mineral: Genkinite, Geversite, Isoferroplatinum, Sperrylite, Stumpflite, Tulameenite
Image: 1576352269
License: Usage for Mineralienatlas project only
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 hellgrau
Hardness (Mohs) 6
Crystal System kubisch, Pa3

Chemism

Chemical formula

PtSb2

Chemical composition

Antimon, Platin

Unit weight: 438.5984 u; Number of atoms in the formula: 3

Info

Empirical formula:

PtSb2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Antimony

Sb

55.52

2

66.67

121.7601000

243.5202000
Platinum

Pt

44.48

1

33.33

195.0782000

195.0782000

Analysis wt%

Pt : 44.48, Sb : 55.52, PLT : 44.48 (Ref: berechnet)

Strunz 9th edition incl. updates

2.EB.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
E: Metallsulfide mit M:S >= 1:2
B: M:S = 1:2, mit Fe, Co, Ni, PGE, usw.
05:Pyrit-Gruppe

Lapis Classification

II/D.17-140

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

Classification by Hölzel

2.EB.360

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
B: With Fe,Co,Ni,PGE Pyrite, Marcasite Family
3: Laurite-Group

Dana 8th edition

02.12.01.14

02: Sulfide Minerals
12: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:2
01: Pyrite Group (Isometric: Pa3)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

hellgrau

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

kubisch

Class (H-M)

m3

Space Group number

205

Space Group

Pa3

Cell parameters a (Å)

6.428

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

Volume (ų)

265.6

X-Ray Powder Diffraction

3.251(50),
2.899(90),
2.647(100),
2.296(60),
2.073(60),
1.958(100),
1.734(60),
1.239(70)
XRD chart Geversite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

6

VHN (Hardness Vickers)

746 (50g)

Density (g/cm³)

10.97

10.968 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Südafrika/Limpopo, Provinz/Bushveld Complex/Burgersfort/Sekhukhuneland/Driekop Mine

Preface

Name from

Traugott Wilhelm Gevers (1900–1991). Zu seiner Biograhie siehe Bruce Cairncross & Terence McCarthy: Who’s Who in Mineral Names: Traugott Wilhelm Gevers (1900–1991). Rocks & Minerals Volume 97, Issue 3 (2022) S. 278-282.

Author (Name, Year)

Stumpfl, 1961

References

Mineralogical Magazine 32 (1961), 833

Other languages

German

Geversit

Spanish

Geversita

English

Geversite

French

Geversite

Russian

Геверсит

Simplified Chinese

锑铂矿

CNMNC symbol

Symbol

Gev

Locations with GPS information

IDs

GUSID (Global unique identifier short form) MGnu67YP6kCWJTvTfpozcw
GUID (Global unique identifier) EBEE6930-0FB6-40EA-9625-3BD37E9A3373
Database ID 1375