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Laurite (ラウラ鉱)

Pictures (3 Images total)

Pt–Fe alloy, laurite (1), törnroosite [Pd11As2Te2] (2), palladoarsenide [Pd2As] (3), sperrylite (4),
Views (File:
1620849887
): 1182
Pt–Fe alloy, laurite (1), törnroosite [Pd11As2Te2] (2), palladoarsenide [Pd2As] (3), sperrylite (4),
Detrital composite grain consisting of Pt–Fe alloy, laurite (1), törnroosite ~[Pd11As2Te2] (2), palladoarsenide ~[Pd2As] (3), sperrylite (4), and irarsite (5). Moopetsi river, Maandagshoek farm, eastern Bushveld, RSA. Polished section, reflected light, in oil immersion.
Copyright: Thomas Oberthür; Contribution: Oberthür
Collection: in Anschliffsammlung BGR Hannover, Collection number: AS
Location: Südafrika/Limpopo, Provinz/Bushveld Complex/Maandagshoek Farm
Mineral: Irarsite, Laurite, Palladoarsenide, Platinum, Sperrylite, Törnroosite
Image: 1620849887
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Pt–Fe alloy, laurite (1), törnroosite [Pd11As2Te2] (2), palladoarsenide [Pd2As] (3), sperrylite (4), (SNr: AS)  W
Analysed with wavelength-dispersive X-ray WDS

Detrital composite grain consisting of Pt–Fe alloy, laurite (1), törnroosite [Pd11As2Te2] (2), palladoarsenide [Pd2As] (3), sperrylite (4), and irarsite (5). Moopetsi river, Maandagshoek farm, ea...

Collection: in Anschliffsammlung BGR Hannover
Copyright: Thomas Oberthür
Contribution: Oberthür 2021-05-12
Locality: Maandagshoek Farm / Bushveld Complex / Limpopo, Provinz / Südafrika
Laurit X
Views (File:
1145129658
): 2963
Laurit X
Stahlgrauer, hochglänzender ca. 0,8 mm großer Einzelkristall Typlokalität, Fund um 1880. Fundort: Pontyn River, Tanah, Laui, Kalimantan (Borneo), Indonesien
Copyright: Andi_Y; Contribution: Andi_Y
Location: Indonesien/Borneo (Kalimantan)/Süd-Kalimantan (Kalimantan Selatan), Provinz/Martapura/Kabupaten Banjar/Tanah Laut
Mineral: Laurite
Image: 1145129658
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Laurit X

Stahlgrauer, hochglänzender ca. 0,8 mm großer Einzelkristall Typlokalität, Fund um 1880. Fundort: Pontyn River, Tanah, Laui, Kalimantan (Borneo), Indonesien

Copyright: Andi_Y
Contribution: Andi_Y 2006-04-15
Locality: Tanah Laut / Kabupaten Banjar / Martapura / Süd-Kalimantan (Kalimantan Selatan), Provinz / Borneo (Kalimantan) / Indonesien
Laurit
Views (File:
1704375486
): 15
Laurit
Winziges Laurit-Nugget (ohne Maßstab, REM-EDX analysiert) aus einem Fluss in Alaska, USA. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: USA/Alaska
Mineral: Laurite
Image: 1704375486
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Laurit  E
Analysed with energy dispersive X-ray spectroscopy EDX

Winziges Laurit-Nugget (ohne Maßstab, REM-EDX analysiert) aus einem Fluss in Alaska, USA. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).

Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2024-01-04
Locality: Alaska / USA

Collectors Summary

Color eisenschwarz
Streak color dark grau
Lustre Metallglanz
Hardness (Mohs) 7.5
Solubility - Säuren, Königswasser
Crystal System kubisch, Pa3

Chemism

Chemical formula

RuS2

Chemical composition

Ruthenium, Schwefel

Unit weight: 165.203 u; Number of atoms in the formula: 3

Info

Empirical formula:

RuS2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

38.82

2

66.67

32.0655000

64.1310000

Ruthenium

Ru

61.18

1

33.33

101.0720000

101.0720000

Analysis wt%

Os : 3.63, Ir : 1.09, Ru : 54.49, Rh : 1.34, S : 38.75, PLT : 60.86 (Ref: Canadian Mineralogist 92)

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.17-100

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.300

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

02.12.01.10

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

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

eisenschwarz

Streak color

dark grau

Change in color

weiß in reflektiertem Licht

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Reflectivity: (Lambda nm) ↓, ↑, Ø

(400) 51.20, , 51.20
(420) 49.80, , 49.80
(440) 48.50, , 48.50
(460) 47.00, , 47.00
(480) 45.70, , 45.70
(500) 44.60, , 44.60
(520) 43.70, , 43.70
(540) 42.80, , 42.80
(560) 42.00, , 42.00
(580) 41.30, , 41.30
(600) 40.60, , 40.60
(620) 40.10, , 40.10
(640) 39.50, , 39.50
(660) 39.00, , 39.00
(680) 38.50, , 38.50
(700) 38.10, , 38.10

Reflection chart Laurite

Reflectivity Ø

43.28

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

kubisch

Class (H-M)

m3

Space Group number

205

Space Group

Pa3

Cell parameters a (Å)

5.60

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)

175.616

X-Ray Powder Diffraction

3.24(80),
2.81(100),
1.982(80),
1.691(100),
1.287(60),
1.256(60),
1.082(80),
0.786(60)

XRD chart Laurite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

7.5

VHN (Hardness Vickers)

3150 (25g)

Density (g/cm³)

6.21 (berechnet) 6.43 (gemessen)

6.248 ( ρ calc. Mineralienatlas )

Instability

- Säuren, Königswasser

Preface

Author (Name, Year)

Wöhler, 1866

References

American Mineralogist 54 (1969), 1330

Other languages

German

Laurit

Spanish

Laurita

French

Laurite

English

Laurite

Russian

Лаурит

Traditional Chinese

硫釕礦

Simplified Chinese

硫钌矿

Japanese

ラウラ鉱

Alternative Name

Traditional Chinese

硫釕鋨礦

Simplified Chinese

硫钌锇矿

CNMNC symbol

Symbol

Lrt

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Xh89qylEA02SeSA2vDrjMg
GUID (Global unique identifier) AB3D1F5E-4429-4D03-9279-2036BC3AE332
Database ID 2151