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Haxonite

A valid IMA mineral species
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08181840017271923576685.jpg
Howard J. Axon
Formula:
NiFe22C6
Recent chemical and single-crystal X-ray diffraction data (https://doi.org/10.2138/am-2025-10067) show that Ni occupies a single crystallographic site, resulting in the ideal formula NiFe22C6.
Colour:
White
Hardness:
5½ - 6
Specific Gravity:
7.70 (Calculated)
Crystal System:
Isometric
Name:
Named in honor of Howard James Axon (7 October 1924, Retford Nottinghamshire, UK - 21 March 1992), metallurgist and expert on meteorite mineralogy at the University of Manchester, Manchester, England.

The mineral was not named in the original description in 1971, but appears in an abstract in 1972.
This page provides mineralogical data about Haxonite.


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Unique IdentifiersHide

Mindat ID:
1836
Long-form identifier:
mindat:1:1:1836:0

Similar NamesHide

SaxoniteA rock subtype

IMA Classification of HaxoniteHide

IMA status:
Approved
Approval year:
1971
First published:
1971
Type description reference:
Scott, E.R.D. (1971) New carbide, (Fe,Ni)23C6, found in iron meteorites. Nature: 229: 61-62.

Classification of HaxoniteHide

Strunz-mindat (2026):
1.BA.10

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides, Phosphides and Hydrides
A : Carbides
Dana 7th ed.:
1.1.25.1
Dana 8th ed.:
1.1.16.2

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
Hey's CIM Ref.:
2.10

2 : Carbides, Nitrides, Silicides and Phosphides

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
HaxIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of HaxoniteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of HaxoniteHide

Transparency:
Opaque
Colour:
White
Hardness:
5½ - 6 on Mohs scale
Hardness:
VHN100=850(50) - Vickers
Density:
7.70 g/cm3 (Calculated)

Optical Data of HaxoniteHide

Chemistry of HaxoniteHide

Mindat Formula:
NiFe22C6

Recent chemical and single-crystal X-ray diffraction data (https://doi.org/10.2138/am-2025-10067) show that Ni occupies a single crystallographic site, resulting in the ideal formula NiFe22C6.
Element Weights:
Element% weight
Fe90.381 %
C5.301 %
Ni4.318 %

Calculated from ideal end-member formula.
Elements listed:
C, Fe, Ni - search for minerals with similar chemistry

Crystallography of HaxoniteHide

Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 10.55 Å
Unit Cell V:
1,174.24 ų (Calculated from Unit Cell)
Comment:
by analogy to isovite?

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.356 Å(strong)
2.151 Å(strong)
1.863 Å(moderate)
1.242 Å(moderate)
1.755 Å(moderately weak)
1.218 Å(moderately weak)
1.060 Å(moderately weak)
Comments:
Toluca meteorite.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 1: Primary nebular phases4.567-4.561
4 : Primary chondrule phases4.566–4.561
Stage 2: Planetesimal differentiation and alteration4.566-4.550
5 : Primary asteroid phases4.566–4.560
6 : Secondary asteroid phases4.566-4.560
Stage 3a: Earth’s earliest Hadean crust>4.50
7 : Ultramafic igneous rocks
Geological Setting:
Characteristic of group I and group IIIC-IIID iron meteorites

Type Occurrence of HaxoniteHide

Co-Type Localities:
ⓘ Toluca meteorite, Jiquipilco (Xiquipilco), Mexico, Mexico
ⓘ Canyon Diablo meteorite, Meteor Crater area, Coconino County, Arizona, USA
General Appearance of Type Material:
intricate intergrowths with taenite, schreibersite, and kamacite
Geological Setting of Type Material:
iron meteorite
Reference:
Scott, E.R.D. (1971) New carbide, (Fe,Ni)23C6, found in iron meteorites. Nature: 229: 61-62.

Synonyms of HaxoniteHide

Other Language Names for HaxoniteHide

Dutch:Haxoniet
German:Haxonit
Simplified Chinese:碳铁矿
哈镍碳铁矿
Spanish:Haxonita

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Haxonite associated with ChromiteFe2+Cr3+2O4
2 photos of Haxonite associated with CoheniteFe3C
1 photo of Haxonite associated with WüstiteFeO
1 photo of Haxonite associated with MagnetiteFe2+Fe3+2O4
1 photo of Haxonite associated with BrezinaiteCr3S4
1 photo of Haxonite associated with CarlsbergiteCrN
1 photo of Haxonite associated with DaubréeliteFe2+Cr3+2S4
1 photo of Haxonite associated with Schreibersite(Fe,Ni)3P
1 photo of Haxonite associated with Taenite(Ni,Fe)
1 photo of Haxonite associated with 'Kamacite'(Fe,Ni)

Related Minerals - Strunz-mindat GroupingHide

1.BA.05CoheniteFe3COrth. mmm(2/m2/m2/m)
1.BA.10Isovite(Cr,Fe)23C6Iso. m3m(4/m32/m) : Fm3m
1.BA.15TongbaiteCr3C2Orth. mmm(2/m2/m2/m) : Pnma
1.BA.20Niobocarbide(Nb,Ta)CIso. m3m(4/m32/m) : Fm3m
1.BA.20Khamrabaevite(Ti,V,Fe)CIso. m3m(4/m32/m) : Fm3m
1.BA.20TantalcarbideTaCIso. m3m(4/m32/m) : Fm3m
1.BA.25QusongiteWCHex. 6m2 : P6m2
1.BA.25ZoyashlyukovaiteMoCHex. 6m2 : P6m2
1.BA.30YarlongiteCr4Fe4NiC4Hex. 6mm : P63mc
1.BA.35EdscottiteFe5C2Mon. 2/m : B2/b

Other InformationHide

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

Internet Links for HaxoniteHide

References for HaxoniteHide

Localities for HaxoniteHide

Showing 28 localities.

This 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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Algeria
 
  • Timimoun Province
    • Aougrout District
Buchwald (1975)
Antarctica
 
  • East Antarctica
    • Victoria Land
      • Allan Hills
Scott et al. (1981) +1 other reference
Argentina
 
  • Chaco Province
    • Doce de Octubre Department
      • Gancedo
Buchwald (1975)
Australia
 
  • Western Australia
    • Bruce Rock Shire
Buchwald (1975)
Belarus
 
  • Gomel Region
    • Buda-Kashalyova District
Bakhtin et al. (2017)
Brazil
 
  • Bahia
    • Monte Santo
Scott (1977)
  • Mato Grosso
    • Juína
      • Sorriso river
Kaminski et al. (2017)
China
 
  • Xinjiang
    • Ili Kazakh Autonomous Prefecture
      • Altay Prefecture (Aletai Prefecture)
        • Qinghe Co. (Qinggil Co.; Chinggil Co.)
Yongheng Chen and Daode Wang (1989)
Hungary
 
  • Veszprém County
    • Veszprém District
      • Nagyvázsony
Sándor et al. (2005)
India
 
  • Madhya Pradesh
    • Jabalpur Division
      • Chhindwara District
Taylor et al. (1981)
  • Uttar Pradesh
    • Sambhal District
Buchwald (1975)
Indonesia
 
  • East Java Province
    • Ngawi Regency
Taylor et al. (1981)
Kazakhstan
 
  • Kostanay Region
    • Bischtübe village area
2: 322-324 +2 other references
Mexico (TL)
 
  • Mexico
    • Jiquipilco (Xiquipilco)
Am Min 59 (1974)
Russia
 
  • Primorsky Krai
    • Krasnoarmeysky District
      • Paseka
H. J. Axon et al. (1981)
Turkey
 
  • Aydin Province
    • Germencik District
Buchwald (1975)
USA (TL)
 
  • Arizona
    • Coconino County
      • Meteor Crater area
Scott (1971) +2 other references
  • California
    • Modoc County
      • Goose Lake
Buchwald (1975)
  • Georgia
    • Wilcox County
Buchwald (1975)
  • Illinois
    • Jo Daviess County
      • Woodbine
Buchwald (1975)
  • Kentucky
    • Metcalfe County
rruff.geo.arizona.edu (n.d.)
  • Tennessee
    • Claiborne County
rruff.geo.arizona.edu (n.d.) +1 other reference
  • Texas
    • Brewster County
      • Study Butte
Fredriksson K. et al. (1989)
    • Ector County
      • Odessa
Buchwald (1975)
    • Hamilton County
      • Carlton
Buchwald (1975)
    • Red River County
      • Rugby (Deport area)
Newton et al. (2000)
  • Utah
    • San Juan County
Buchwald (1975)
  • Virginia
    • Augusta County
Buchwald (1975)
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