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Yarlongite

Collectors Summary

Color stahlgrau
Hardness (Mohs) 5.75
Cleavages vollkommen {001}
Fracture muschelig
Crystal System hexagonal, P63mc

Chemism

Chem­ical formula

(Cr4Fe4Ni)C4

Chem­ical com­po­si­tion

Chrom, Eisen, Nickel, Kohlenstoff

Unit weight: 538.10198 u; Number of atoms in the formula: 13

Info

Empirical formula:

(Cr4Fe4Ni)C4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Carbon

C

8.93

4

30.77

12.0107800

48.0431200

Chromium

Cr

38.65

4

30.77

51.9961600

207.9846400

Iron

Fe

41.51

4

30.77

55.8452000

223.3808000

Nickel

Ni

10.91

1

7.69

58.6934200

58.6934200

Strunz 9th edi­tion incl. updates

1.BA.30

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
B: Metallische Kohlenstoffverbindungen (Carbide), Strickstoffverbindungen (Nitride) und Phosphorverbindungen (Phosphide)
A: Carbide
30:

Lapis Clas­sifica­tion

I/A.09-032

I: ELEMENTE
A: Metalle und intermetallische Verbindungen
9: Carbide, Nitride, Phosphide und Silicide (metallartige Verbindungen)

Clas­sifica­tion by Hölzel

1.BA.240

1: ELEMENTS
B: Carbides, Silicides, Phosphides, Nitrides
A: Carbides

Dana 8th edi­tion

01.01.25.03

01: Native Elements and Alloys
01: Native Elements with metallic elements other than the platinum group

IMA sta­tus

anerkannt Nov. 2007

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

stahlgrau

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6mm

Space Group number

186

Space Group

P63mc

Cell param­e­ters a (Å)

13.839

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

4.496

Cell param­e­ters a/b or c/a

0.325

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

6

Volumne (ų)

745.704

X-Ray Pow­der Diffrac­tion

6.920(100), 4.530(35), 3.596(55), 2.493(36), 2.023(98), 1.998(32), 1.825(47), 1.798(45)

XRD chart Yarlongite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5.75

VHN (Hard­ness Vick­ers)

630 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

7.19 (berechnet)

7.189 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {001}

Frac­ture

muschelig

Tenac­ity

spröde

(Co-)Type locality

(Co-)Type locality

China/Tibet (Xizang AR)/Shannan, Präfektur/Qusum (Qusong), Kreis/Luobusa-Ophiolith

Type mate­r­ial

Geologisches Museum von China

Col­lec­tion number of type mate­r­ial

M11650

Preface

Author (Name, Year)

Shi Nicheng, 2007

References

IMA Veröffentlichungen Nov 2007

Acta Geologica Sinica 83 (2009), 52

Science in China, Ser. D 48 (2005), 338

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

Yarlongite

(Cr4Fe4Ni)C4

hexagonal : 6mm : P63mc

1.BA.30

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

'Hongquiite'

TiC

kubisch : m3m : Fm3m

I/A.09-010

Khamrabaevite

(Ti,V,Fe)C

kubisch : m3m : Fm3m

I/A.09-020

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

I/A.09-030

Yarlongite

(Cr4Fe4Ni)C4

hexagonal : 6mm : P63mc

I/A.09-032

Isovite

(Cr,Fe)23C6

kubisch : m3m : Fm3m

I/A.09-035

Haxonite

(FeNi)23C6

I/A.09-040

Cohenite

(Fe,Ni,Co)3C

orthorhombisch : mmm : Pnma

I/A.09-050

Niobocarbide

(Nb,Ta)C

kubisch : m3m : Fm3m

I/A.09-055

Tantalcarbide

TaC

kubisch : m3m : Fm3m

I/A.09-060

Qusongite

WC

hexagonal : 6m2 : P6m2

I/A.09-070

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

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

1.BA.200

Yarlongite

(Cr4Fe4Ni)C4

hexagonal : 6mm : P63mc

1.BA.240

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

Carlsbergite

CrN

kubisch : m3m : Fm3m

01.01.20.01

Barringerite

(Fe,Ni)2P

hexagonal : 6m2 : P62m

01.01.21.01

Schreibersite

(Fe,Ni)3P

tetragonal : 4 : I4

01.01.21.02

Nickelphosphide

(Ni,Fe)3P

tetragonal : 4 : I4

01.01.21.03

Allabogdanite

(Fe,Ni)2P

orthorhombisch : mmm : Pnma

01.01.21.04

Perryite

(Ni,Fe)8(Si,P)3

trigonal : 3m : R3c

01.01.22.01

Suessite

(Fe,Ni)3Si

kubisch : m3m : Im3m

01.01.23.01

Gupeiite

Fe3Si

kubisch : m3m : Fm3m

01.01.23.02

Xifengite

Fe5Si3

hexagonal : 6/mmm : P63/mcm

01.01.23.03

Hapkeite

Fe2Si

kubisch : m3m : Pm3m

01.01.23.04

Yarlongite

(Cr4Fe4Ni)C4

hexagonal : 6mm : P63mc

01.01.25.03

IMA Number

IMA 2007-035

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

German pages

DeWikiPedia - search for: Yarlongit
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English pages

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