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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

Other languages

German

Roaldit

Spanish

Roaldita

French

Roaldite

English

Roaldite

Simplified Chinese

陨氮镍铁矿

Alternative Name

Simplified Chinese

罗氮铁矿

CNMNC (IMA)-Number

IMA 1980-079

CNMNC symbol

Symbol

Roa

Locations with GPS information