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Roaldite

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Formula:
(Fe,Ni)4N
Colour:
Tin-white
Hardness:
5½ - 6½
Name:
Named after Roald Norbach Nielsen (1928 - ), Danish electron-microprobe specialist.
This page provides mineralogical data about Roaldite.

Classification of Roaldite

Approved
1.BC.05

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
C : Nitrides
Dana 7th ed.:
1.1.27.2
1.1.18.2

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
2.12

2 : Carbides, Nitrides, Silicides and Phosphides
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Type Occurrence of Roaldite

Year of Discovery:
1981

Physical Properties of Roaldite

Metallic
Colour:
Tin-white
Hardness (Mohs):
5½ - 6½

Chemical Properties of Roaldite

Formula:
(Fe,Ni)4N
Essential elements:
All elements listed in formula:
Common Impurities:
Ni

Relationship of Roaldite to other Species

2.1MoissaniteSiC
2.2SinoiteSi2N2O
2.3OsborniteTiN
2.4TongbaiteCr3C2
2.5CarlsbergiteCrN
2.6SiderazotFe5N2
2.7GupeiiteFe3Si
2.8XifengiteFe5Si3
2.9Khamrabaevite(Ti,V,Fe)C
2.10Haxonite(Fe,Ni)23C6
2.11Cohenite(Fe,Ni,Co)3C
2.13Suessite(Fe,Ni)3Si
2.14Schreibersite(Fe,Ni)3P
2.15Barringerite(Fe,Ni)2P
2.16Perryite(Ni,Fe)5(Si,P)2

Other Names for Roaldite

Name in Other Languages:
German:Roaldit
Simplified Chinese:陨氮镍铁矿
罗氮铁矿
Spanish:Roaldita

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Roaldite

Reference List:
Geochemica et Cosmochimica Acta, Suplement 16 (Proceedings of the Lunar and Planetary Science Conference 12, Part B): 1343-1348.

Canadian Mineralogist (1990): 28: 751-755.

Internet Links for Roaldite

Localities for Roaldite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Australia (TL)
 
  • Western Australia
    • Quairading Shire
Buchwald & Nielsen (1981) Lunar & Planetary Sceince 1981, 112-4
Denmark
 
  • Sjælland Region
Buchwald VF, Nielsen HP: Lunar and Planetary Science (1981) 12, 112-114
USA
 
  • Arizona
    • Coconino Co.
      • Winslow
        • Meteor Crater and vicinity
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 355.
Mineral and/or Locality  
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