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Malanite (Malanit)

Pictures (1 Images total)

Malanit
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1702143472
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Malanit
Graumetallische Malanit-Mikroeinschlüsse in unbestimmten goldfarbenen Sulfiden (ohne Maßstab). Von der Co-Typlokalität im Malan River Valley, Kreis Zunhua, Tangshan, Provinz Hebei, China. Vergesellschaftet mit Olivin-, Pyroxen- und Serpentin-Mineralen. Für die Analyse polierter Anschliff; Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: China/Hebei, Provinz/Tangshan, bezirksfreie Stadt/Zunhua, Kreis/Malan River Valley/Ni-Cu-Lagerstätte
Mineral: Malanite
Image: 1702143472
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Malanit

Graumetallische Malanit-Mikroeinschlüsse in unbestimmten goldfarbenen Sulfiden (ohne Maßstab). Von der Co-Typlokalität im Malan River Valley, Kreis Zunhua, Tangshan, Provinz Hebei, China. Vergesell...
Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-09
Locality: Ni-Cu-Lagerstätte / Malan River Valley / Zunhua, Kreis / Tangshan, bezirksfreie Stadt / Hebei, Provinz / China

Collectors Summary

Color stahlgrau-met.
Streak color schwarz
Hardness (Mohs) 5.25
Cleavages manchmal beobachtet {111}
Fracture 'keiner'
Crystal System kubisch, Fd3m

Chemism

Chemical formula

Cu(Pt,Ir)2S4

Chemical composition

Iridium, Kupfer, Platin, Schwefel

Unit weight: 580.53425 u; Number of atoms in the formula: 7

Info

Empirical formula:

Cu(Pt0.75Ir0.25)2S4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

22.09

4

57.14

32.0655000

128.2620000
Copper

Cu

10.95

1

14.29

63.5463000

63.5463000
Iridium

Ir

16.56

0.5

7.14

192.2173000

96.1086500
Platinum

Pt

50.40

1.5

21.43

195.0782000

292.6173000

Analysis wt%

Pt : 36.77, Ir : 25.23, Co : 2.60, Pd : 0.45, Cu : 9.95, Fe : 1.00, S : 23.47, PLT : 62.45 (Ref: Geol.Rev.81)

Strunz 9th edition incl. updates

2.DA.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
D: Metallsulfide mit M:S = 3:4 und 2:3
A: M:S = 3:4
05:Thiospinel/Linneit-Gruppe

Lapis Classification

II/D.02-040

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

Classification by Hölzel

2.DA.340

2: SULFIDES
D: With Me/S <1/1 and >1/2
A: Me/S=3/4 Thiospinels, etc
3: Thiospinels with PGE

Dana 8th edition

02.10.01.17

02: Sulfide Minerals
10: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=3:4
01: Linnaeite Group (Isometric: Fd3m)

IMA status

anerkannt 1995

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Spinel supergroup  ⇒ Thiospinel Group  ⇒ Carrollite subgroup

Optical Properties

Color

stahlgrau-met.

Streak color

schwarz

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

9.92

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

8

Volume (ų)

976.191

X-Ray Powder Diffraction

5.35(60),
2.95(50),
2.50(100),
1.90(80),
1.75(100),
1.015(70),
0.783(80)
XRD chart Malanite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.25

VHN (Hardness Vickers)

462 (20g)

Density (g/cm³)

7.40 (berechnet)

7.9 ( ρ calc. Mineralienatlas )

Cleavages

manchmal beobachtet {111}

Fracture

'keiner'

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

China/Hebei, Provinz/Chengde, bezirksfreie Stadt/Xinglong, Kreis

China/Hebei, Provinz/Tangshan, bezirksfreie Stadt/Zunhua, Kreis/Malan River Valley/Ni-Cu-Lagerstätte

Preface

Author (Name, Year)

Yu & Lin & Chao & Fang & Huang, 1974

References

Acta Geologica Sinica (in Chinese) 70 (1996), 309

IMA group assignments

Other languages

German

Malanit

Spanish

Malanita

English

Malanite

French

Malanite

Russian

Маланит

CNMNC (IMA)-Number

IMA 1995-003

CNMNC symbol

Symbol

Mla

Locations with GPS information

IDs

GUSID (Global unique identifier short form) kOCmOPJbFUqa56mO0LeCUw
GUID (Global unique identifier) 38A6E090-5BF2-4A15-9AE7-A98ED0B78253
Database ID 2339