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Roaldite

Collectors Summary

Color weiß-met.
Hardness (Mohs) 5.50 - 6.00
Crystal System kubisch, Pm3m

Chemism

Chem­ical formula

Fe4N

Chem­ical com­po­si­tion

Eisen, Stickstoff

Unit weight: 237.38752 u; Number of atoms in the formula: 5

Info

Empirical formula:

Fe4N

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Nitrogen

N

5.90

1

20.00

14.0067200

14.0067200
Iron

Fe

94.10

4

80.00

55.8452000

223.3808000

Strunz 9th edi­tion incl. updates

1.BC.05

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
B: Metallische Kohlenstoffverbindungen (Carbide), Strickstoffverbindungen (Nitride) und Phosphorverbindungen (Phosphide)
C: Nitride
05:Roaldit-Siderazot-Gruppe

Lapis Clas­sifica­tion

I/A.10-030

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

Clas­sifica­tion by Hölzel

1.BC.110

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

Dana 8th edi­tion

01.01.18.02

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

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

weiß-met.

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

221

Space Group

Pm3m

Cell param­e­ters a (Å)

3.79

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

1

Volumne (ų)

54.44

X-Ray Pow­der Diffrac­tion

2.684(20),
2.191(100),
1.897(70),
1.697(20),
1.342(60),
1.144(80),
1.095(40),
0.949(40)
XRD chart Roaldite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5.50 - 6.00

VHN (Hard­ness Vick­ers)

750

Density (g/cm³)

7.24 (berechnet)

7.24 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Avon/Youndegin-Meteorit

Preface

Author (Name, Year)

Buchwald & Nielsen, 1981

References

Lunar and Planetary Sciences 12 (1981), 112

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

Roaldite

Fe4N

kubisch : m3m : Pm3m

1.BC.05

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

Osbornite

TiN

kubisch : m3m : Fm3m

I/A.10-010

Carlsbergite

CrN

kubisch : m3m : Fm3m

I/A.10-020

Qingsongite

BN

kubisch : 43m : F43m

I/A.10-025

Roaldite

Fe4N

kubisch : m3m : Pm3m

I/A.10-030

Siderazot

Fe3N1.33

hexagonal : 6/mmm : P63/mmc

I/A.10-040

Nierite

Si3N4

trigonal : 3m : P31c

I/A.10-045

Sinoite

Si2N2O

orthorhombisch : mm2 : Cmc21

I/A.10-050

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

Siderazot

Fe3N1.33

hexagonal : 6/mmm : P63/mmc

1.BC.100

Roaldite

Fe4N

kubisch : m3m : Pm3m

1.BC.110

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

Leadamalgam

Pb0.7Hg0.3

tetragonal : 4/mmm : I4/mmm

 01.01.10.01

'Kamacite'

(Fe,Ni)

kubisch : m3m : Im3m

 01.01.11.01

Taenite

(Ni,Fe)

kubisch : m3m : Fm3m

 01.01.11.02

Tetrataenite

FeNi

monoklin : m : Pm

 01.01.11.03

Awaruite

Ni3Fe

kubisch : m3m : Pm3m

 01.01.11.04

Nickel

Ni

kubisch : m3m : Fm3m

 01.01.11.05

Wairauite

CoFe

kubisch : m3m : Pm3m

 01.01.11.06

Chromium

Cr

kubisch : m3m : Im3m

 01.01.12.01

Chromferide

Fe1.5Cr0.2

kubisch : m3m : Pm3m

 01.01.12.02

Ferchromide

Cr3Fe1-x

kubisch : m3m : Pm3m

 01.01.12.03

Tin

Sn

tetragonal : 4/mmm : I41/amd

 01.01.13.01

Indium

In

tetragonal : 4/mmm : I4/mmm

 01.01.14.01

Cupalite

(Cu,Zn)Al

 01.01.15.01

Khatyrkite

(Cu,Zn)Al2

tetragonal : 4/mmm : I4/mcm

 01.01.15.02

Cohenite

(Fe,Ni,Co)3C

orthorhombisch : mmm : Pnma

 01.01.16.01

Haxonite

(FeNi)23C6

 01.01.16.02

Isovite

(Cr,Fe)23C6

kubisch : m3m : Fm3m

 01.01.16.03

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

 01.01.17.01

Florenskyite

Fe(Ti,Ni)P

orthorhombisch : mmm : Pnma

 01.01.17.02

Siderazot

Fe3N1.33

hexagonal : 6/mmm : P63/mmc

 01.01.18.01

Roaldite

Fe4N

kubisch : m3m : Pm3m

 01.01.18.02

Osbornite

TiN

kubisch : m3m : Fm3m

 01.01.19.01

Khamrabaevite

(Ti,V,Fe)C

kubisch : m3m : Fm3m

 01.01.19.02

Niobocarbide

(Nb,Ta)C

kubisch : m3m : Fm3m

 01.01.19.03

Tantalcarbide

TaC

kubisch : m3m : Fm3m

 01.01.19.04

Alternative Name

Simplified Chinese

罗氮铁矿

CNMNC (IMA)-Number

IMA 1980-079

CNMNC symbol

Symbol

Roa

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

German pages

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English pages

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