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Cohenite

A valid IMA mineral species - grandfathered

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Photos of Cohenite (21)Discuss Cohenite

Cohenite Gallery Search Photos of Cohenite

Edit Cohenite Add Synonym Edit CIF structures Clear Cache

Cohenite, etc.

Maimechinskaya intrusion, Maimecha and Kotui Rivers Basin, Krasnoyarsk Krai, Russia

Cohenite

Coal mine No. 45, Kopeysk, Chelyabinsk Oblast, Russia

Cohenite

Kopeysk, Chelyabinsk Oblast, Russia

Cohenite, etc.

Maimechinskaya intrusion, Maimecha and Kotui Rivers Basin, Krasnoyarsk Krai, Russia

Cohenite

Coal mine No. 45, Kopeysk, Chelyabinsk Oblast, Russia

Cohenite

Kopeysk, Chelyabinsk Oblast, Russia

Cohenite, etc.

Maimechinskaya intrusion, Maimecha and Kotui Rivers Basin, Krasnoyarsk Krai, Russia

Cohenite

Coal mine No. 45, Kopeysk, Chelyabinsk Oblast, Russia

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About CoheniteHide

Emil Cohen

Formula:

Fe₃C

May contain minor Ni or Co replacing Fe.

Colour:

Tin white

Lustre:

Metallic

Hardness:

5½ - 6

Specific Gravity:

7.20 - 7.65

Crystal System:

Orthorhombic

Member of:

Cohenite Subgroup > Non-stoichiometric Perovskites Group > Perovskite Supergroup

Name:

In honor of Emil Wilhelm Cohen (12 October 1842, Akjär, Jutland, Denmark- 13 April 13, 1905, Greifswald, Germany), Professor of Mineralogy, University of Greifswald, Greifswald, Germany. He was a founder of modern petrography and was among the first to study the petrography of iron meteorites.

Type Locality:

ⓘ Magura meteorite, Slanica, Námestovo, Námestovo District, Žilina Region, Slovakia

In technical iron alloys, cohenite is well-known as a synthetic phase and is called cementite (Zementit in German).
See also austenite.

Unique IdentifiersHide

Mindat ID:

1107

Long-form identifier:

mindat:1:1:1107:1

Similar NamesHide

Chenite	A valid IMA mineral species	Pb₄Cu(SO₄)₂(OH)₆
Khinite	A valid IMA mineral species	Pb²⁺Cu₃²⁺[Te⁶⁺O₆](OH)₂

IMA Classification of CoheniteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

First published:

1889

Type description reference:

Weinschenk, E. (1889): Ueber einige Bestandtheile des Meteoreisens von Magura, Arva, Ungarn. Annalen des k. k. naturhistorischen Hofmuseums, 4 (2), 93-101. (in German)

Classification of CoheniteHide

Strunz-mindat (2026):

1.BA.05

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.:

1.1.24.1

Dana 8th ed.:

1.1.16.1

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

Hey's CIM Ref.:

2.11

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.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference for Standard
Coh	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Coh	Whitney & Evans (2010)	Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371

Physical Properties of CoheniteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Tin white

Comment:

Tin-white; oxidizes to light bronze then golden yellow.

Hardness:

5½ - 6 on Mohs scale

Tenacity:

Very brittle

Cleavage:

Distinct/Good
{100}, {010}, and {001}.

Density:

7.20 - 7.65 g/cm³ (Measured) 7.68 g/cm³ (Calculated)

Optical Data of CoheniteHide

Type:

Biaxial

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)
400nm	51.8%	54.7%
420nm	52.6%	55.2%
440nm	53.2%	55.7%
460nm	53.8%	56.2%
480nm	54.4%	56.7%
500nm	55.0%	57.1%
520nm	55.6%	57.7%
540nm	56.2%	58.2%
560nm	56.8%	58.8%
580nm	57.4%	59.3%
600nm	58.0%	60.0%
620nm	58.7%	60.6%
640nm	59.3%	61.3%
660nm	60.0%	62.0%
680nm	60.8%	62.8%
700nm	61.6%	63.6%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 63.6%.
R₁ shown in black, R₂ shown in red

Chemistry of CoheniteHide

Mindat Formula:

Fe₃C

May contain minor Ni or Co replacing Fe.

Element Weights:

Element	% weight
Fe	93.311 %
C	6.690 %

Calculated from ideal end-member formula.

Elements listed:

C, Fe - search for minerals with similar chemistry

Crystallography of CoheniteHide

Crystal System:

Orthorhombic

Class (H-M):

mmm(2/m2/m2/m) - Dipyramidal

Cell Parameters:

a = 5.09 Å, b = 6.74 Å, c = 4.52 Å

Ratio:

a:b:c = 0.755 : 1 : 0.671

Unit Cell V:

155.07 Å³ (Calculated from Unit Cell)

Comment:

Space Group: P bnm.

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Locality	Temp (K)
0013522	Cohenite	Fruchart D, Chaudouet P, Fruchart R, Rouault A, Senateur J P (1984) Etudes structurales de composes de type cementite: effet de l'hydrogene sur Fe3C suivi par diffraction neutronique. Spectrometrie Mossbauer sur FeCo2B et Co3B dopes au 57Fe Journal of Solid State Chemistry 51 246-252	1984	synthetic	293
0019097	Cohenite	Herbstein F H, Smuts J (1964) Comparison of X-ray and neutron-diffraction refinements of the structure of cementite Fe3C Acta Crystallographica 17 1331-1332	1964	synthetic	293
0019132	Cohenite	Lyashchenko B G, Sorokin L M (1963) Determination of the position of carbon in cementite by the neutron diffraction method Soviet Physics Crystallography 8 300-304	1963	synthetic	293
0019094	Cohenite	Meinhardt D, Krisement O (1962) Strukturuntersuchungen an Karbiden des Eisens, Wolframs und Chroms mit thermischen Neutronen Archiv fur das Eisenhuettenwesen 33 493-499	1962	synthetic	293
0019095	Cohenite	Lipson H, Petch N J (1940) The crystal structure of cementite, Fe3C The Journal of the Iron and Steel Institute (London) 142 95-103	1940	synthetic	293
0017653	Cohenite	Shimura S (1930) A study on the structure of cementite _cod_database_code 1010931 Proceedings of the Japan Academy 6 269-271	1930	synthetic	293
0017653	Cohenite	Shimura S (1930) A study on the structure of cementite _cod_database_code 1010931 Proceedings of the Japan Academy 6 269-271	1930	synthetic	293
0010504	Cohenite	Hendricks B S (1930) The crystal structure of cementite Zeitschrift fur Kristallographie 74 534-545	1930	synthetic	293
0019113	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	300
0019112	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	280
0019114	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	320
0019111	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	260
0019115	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	340
0019110	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	240
0019116	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	360
0019109	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	220
0019117	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	380
0019108	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	200
0019118	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	400
0019107	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	180
0019119	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	420
0019106	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	160
0019120	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	440
0019105	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	140
0019121	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	460
0019104	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	120
0019122	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	480
0019103	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	100
0019123	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	500
0019102	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	80
0019124	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	520
0019101	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	60
0019125	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	540
0019100	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	40
0019126	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	560
0019099	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	20
0019127	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	580
0019098	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	4.2
0019128	Cohenite	Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J (2004) Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Journal of Applied Crystallography 37 82-90	2004	synthetic	600
0019129	Cohenite	Fasiska E J, Jeffery G A (1965) On the cementite structure Acta Crystallographica 19 463-471	1965		293
0017888	Cohenite	Westgren A (1932) Cementitens kristallstruktur _cod_database_code 1010961 Jernkontorets Annaler 1932 457-468	1932		293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Cohenite'
loop_
_publ_author_name
'Fruchart D'
'Chaudouet P'
'Fruchart R'
'Rouault A'
'Senateur J P'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 51 
_journal_year 1984
_journal_page_first 246
_journal_page_last 252
_publ_section_title
;
 Etudes structurales de composes de type cementite: effet de l'hydrogene sur
 Fe3C suivi par diffraction neutronique. Spectrometrie Mossbauer sur FeCo2B et
 Co3B dopes au 57Fe
;
_database_code_amcsd 0013522
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Fe3 C'
_cell_length_a 5.092
_cell_length_b 6.741
_cell_length_c 4.527
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 155.390
_exptl_crystal_density_diffrn      7.675
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Fe1   0.18340   0.06890   0.33440   0.00545
Fe2   0.03880   0.25000   0.84220   0.01267
C   0.87640   0.25000   0.44260   0.01140

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.01 Å	(100)
2.06 Å	(70)
2.38 Å	(65)
2.10 Å	(60)
2.02 Å	(60)
1.97 Å	(55)
1.85 Å	(40)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 1: Primary nebular phases	4.567-4.561
4 : Primary chondrule phases	4.566–4.561
Stage 2: Planetesimal differentiation and alteration	4.566-4.550
5 : Primary asteroid phases	4.566–4.560
6 : Secondary asteroid phases	4.566-4.560
Stage 3a: Earth’s earliest Hadean crust	>4.50
8 : Mafic igneous rocks
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere	<0.6
50 : Coal and/or oil shale minerals	<0.36
Stage 10b: Anthropogenic minerals	<10 Ka
54 : Coal and other mine fire minerals (see also #51 and #56)

Type Occurrence of CoheniteHide

Type Locality:

ⓘ Magura meteorite, Slanica, Námestovo, Námestovo District, Žilina Region, Slovakia

Place of Conservation of Type Material:

n.d.

Geological Setting of Type Material:

Iron meteorite.

Reference:

Weinschenk, E. (1889): Ueber einige Bestandtheile des Meteoreisens von Magura, Arva, Ungarn. Annalen des k. k. naturhistorischen Hofmuseums, 4 (2), 93-101. (in German)

Synonyms of CoheniteHide

Cementite

Other Language Names for CoheniteHide

Dutch:Coheniet

German:Cohenit
Cementit
Zementit

Russian:Когенит

Simplified Chinese:陨碳铁矿
陨碳铁

Spanish:Cementita
Cohenita

Relationship of Cohenite to other SpeciesHide

Member of:

Cohenite Subgroup > Non-stoichiometric Perovskites Group > Perovskite Supergroup

Common AssociatesHide

Associations Based on Photo Data:

25 photos of Cohenite associated with 'Glass'
24 photos of Cohenite associated with Pyrite	FeS₂
20 photos of Cohenite associated with Goethite	Fe³⁺O(OH)
13 photos of Cohenite associated with Troilite	FeS
8 photos of Cohenite associated with Native Iron	Fe
7 photos of Cohenite associated with Graphite	C
4 photos of Cohenite associated with Ilmenite	Fe²⁺TiO₃
2 photos of Cohenite associated with Chromite	Fe²⁺Cr³⁺₂O₄
2 photos of Cohenite associated with Haxonite	NiFe₂₂C₆
1 photo of Cohenite associated with Wüstite	FeO

Related Minerals - Strunz-mindat Grouping Hide

1.BA.10	Haxonite	NiFe₂₂C₆	Iso. m3m(4/m32/m) : Fm3m
1.BA.10	Isovite	(Cr,Fe)₂₃C₆	Iso. m3m(4/m32/m) : Fm3m
1.BA.15	Tongbaite	Cr₃C₂	Orth. mmm(2/m2/m2/m) : Pnma
1.BA.20	Niobocarbide	(Nb,Ta)C	Iso. m3m(4/m32/m) : Fm3m
1.BA.20	Khamrabaevite	(Ti,V,Fe)C	Iso. m3m(4/m32/m) : Fm3m
1.BA.20	Tantalcarbide	TaC	Iso. m3m(4/m32/m) : Fm3m
1.BA.25	Qusongite	WC	Hex. 6m2 : P6m2
1.BA.25	Zoyashlyukovaite	MoC	Hex. 6m2 : P6m2
1.BA.30	Yarlongite	Cr₄Fe₄NiC₄	Hex. 6mm : P6₃mc
1.BA.35	Edscottite	Fe₅C₂	Mon. 2/m : B2/b

Other InformationHide

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 CoheniteHide

mindat.org URL:

https://www.mindat.org/min-1107.html
Please feel free to link to this page.

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External Links:

Look for Cohenite on Webmineral

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for CoheniteHide

Reference List:

Weinschenk, E. (1889): Ueber einige Bestandtheile des Meteoreisens von Magura, Arva, Ungarn. Annalen des k. k. naturhistorischen Hofmuseums, 4 (2), 93-101. (in German)

Transactions of the Royal Society of London: A286: 453-491.

Weinschenk, E. (1889): Ueber einige Bestandtheile des Meteoreisens von Magura, Arva, Ungarn. Annalen des k. k. naturhistorischen Hofmuseums, 4 (2), 93-101. (in German)

Hendricks, B.S. (1930) The crystal structure of cementite. Zeitschrift für Kristallographie, 74, 534-545.

Shimura, S. (1930) 82. A study on the structure of cementite. Proceedings of the Japan Academy, 6, 269-271.

Westgren, A. (1932) Cementitens kristallstruktur. Jernkontorets Annaler, 1932, 457-468.

Lipson, H., Petch, N.J. (1940) The crystal structure of cementite, Fe3C. The Journal of the Iron and Steel Institute (London), 142, 95-103.

Lofquist, H., Benedicks, C. (1941) Det store Nordenskjoldska Jarnblocket fran Ovifak; Mikrostruktur och Bildnigssat. K. Svenska Vetensk. Akad. Handl. 19, (3) 96 p.

Perry, S.H. (1944) The metallography of meteoritic iron. Bulletin of the United States National Museum, 184, 206.

Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.pp.122-123

Ramdohr, P. (1953) Neue Beobaehtungen am Buhl-Eisen. Sitzungber. der Deutsche Akad. Wiss., Berlin Abh., Kl. Math. u. allg. Naturw. Jahrg. 1952, (5) 9-24.

Ringwood, A.E. (1960) Cohenite as a pressure indicator in iron meteorites. Geochimica et Cosmochimica Acta, 20, 155-158.

Löhberg, K. (1961) Der Zementit Fe3C als geordneter Substitutionsmischkristall. Naturwissenschaften, 48, 46-46.

Gardin, A.I. (1962) An electron-diffraction study of the structure of cementite. Soviet Physics - Crystallography, 7, 694-700.

Lovering, J.F. (1964) Electron microprobe analysis of terrestrial and meteoritic cohenite. Geochimica et Cosmochimica Acta, 28, 1745-1756.

Lipschutz, M.E., Anders, E. (1964) Cohenite as a pressure indicator in iron meteorites? Geochimica et Cosmochimica Acta, 28, 699-711.

Herbstein, F.H., Smuts, J. (1964) Comparison of X-ray and neutron-diffraction refinements of the structure of cementite Fe3C. Acta Crystallographica, 17, 1331-1332.

Fasiska, E.J., Jeffery, G.A. (1965) On the cementite structure. Acta Crystallographica, 19, 463-471.

Ringwood, A.E. (1965) Cohenite as a pressure indicator in iron meteoritcs--III. Geochimica et Cosmochimica Acta, 29, 573-579.

Brett, Robin (1967) Cohenite: its occurrence and a proposed origin. Geochimica et Cosmochimica Acta, 31 (2) 143-159 doi:10.1016/s0016-7037(67)80042-5

Ramdohr, Paul (1969) The Ore Minerals and their Intergrowths. Pergamon Press, Oxford. 1174pp. doi:10.1016/c2013-0-10027-x

Fruchart, D., Chaudouet, P., Fruchart, R., Rouault, A., Senateur, J.P. (1984) Etudes structurales de composés de type cémentite: effet de l'hydrogène sur Fe3C suivi par diffraction neutronique. Spectrométrie mössbauer sur FeCo2B et Co3B dopés au 57Fe. Journal of Solid State Chemistry, 51, 246-252.

(2005) Cohenite. Handbook of Mineralogy. Mineralogical Society of America

Localities for CoheniteHide

Showing 111 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

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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.


Antarctica
East Antarctica Pecora Escarpment ⓘ Pecora Escarpment 82506 meteorite	Berkley (1986)
Queen Maud Land Queen Fabiola Mountains ⓘ Yamato 81020 meteorite	Brearley et al. (1998)
Victoria Land Allan Hills ⓘ Allan Hills A77257 meteorite	Berkley et al. (1985)
ⓘ Allan Hills A77283 meteorite	Clarke Jr. +2 other references
ⓘ Allan Hills A77307 meteorite	Twentieth Symposium on Antarctic ... +2 other references

Argentina
Chaco Province Doce de Octubre Department Gancedo ⓘ Campo del Cielo meteorite	Bunch et al. (1970) +1 other reference
Santiago del Estero Province Salavina Department ⓘ Malotas meteorite	Olsacher (1931)

Asia
Tian Shan ⓘ Kurama Range (Kuruminsky Range; Kuraminskii Range)	Rappenglück (2022)

Australia
Northern Territory MacDonnell Region Henbury Station Henbury Meteorite Conservation Reserve ⓘ Henbury meteorite	Ramdohr (1972)
Victoria City of Casey Cranbourne ⓘ Cranbourne meteorite (incl. Beaconsfield meteorite; Langwarrin meteorite; Pearcedale meteorite; Pakenham meteorite)	Cohen (1897) +1 other reference
Western Australia Bruce Rock Shire ⓘ Youndegin meteorite	DeLaeter (1973) +1 other reference
Dundas Shire Mundrabilla Roadhouse ⓘ Mundrabilla meteorite (Premier Downs meteorite)	Simpson (1938)
Meekatharra Shire Belele Station ⓘ Tieraco Creek meteorite	E. Simpson +1 other reference
Bulloo Downs Station ⓘ Kumerina meteorite	E. Simpson +2 other references
Wonyulgunna Station ⓘ Wonyulgunna meteorite	E. Simpson +2 other references
Upper Gascoyne Shire Dalgety Downs Station ⓘ Dalgety Downs meteorite	Ramdohr (1972)

Azerbaijan
Aghjabadi District Hindarx ⓘ Indarch meteorite	Mason (1966)

Belarus
Gomel Region Buda-Kashalyova District ⓘ Brahin meteorite	Dymkin et al. (1984) +1 other reference

Brazil
Bahia Monte Santo ⓘ Bendegó Meteorite	Scott (1977)
Goiás Niquelândia ⓘ Uruaçu meteorite	The Meteoritical Bulletin
Mato Grosso Juína Sorriso river ⓘ Chicória farm ?	Kaminski et al. (2017)

Burkina Faso
Est Region Komondjari Province Gayeri Department ⓘ Bogou meteorite	Buchwald (1975)

Canada
Alberta Sturgeon County ⓘ Abee meteorite	Dawson +2 other references

China
Guangxi Hechi Nandan County Lihu - Yaochai area ⓘ Nandan meteorite (Nantan meteorite)	Li et al. (2022)
Hezhou ⓘ Zhaoping meteorite	Lin et al. (2007)
Hubei Enshi Autonomous Prefecture (E'xi Autonomous Prefecture) Jianshi Co. ⓘ Jianshi meteorite	Wen Chuanfen (1980)
Xinjiang Ili Kazakh Autonomous Prefecture Altay Prefecture (Aletai Prefecture) Qinghe Co. (Qinggil Co.; Chinggil Co.) ⓘ Aletai meteorite (Aletai iron meteorite; Xinjiang iron meteorite; Armanty iron meteorite; Akebulake iron meteorite; Ulasitai iron meteorite; Wuxilike iron meteorite)	XU et al. (2008)

Finland
Satakunta Huittinen ⓘ Hvittis meteorite	Mason (1966)

Germany
Hesse Kassel Region Kassel District Ahnatal Weimar ⓘ Bühl	Ramdohr (1980) +1 other reference
Saxony Sächsische Schweiz-Osterzgebirge Bahretal Nentmannsdorf ⓘ Nenntmannsdorf meteorite (Nentmannsdorf meteorite; Nenntmansdorf meteorite)	Buchwald (1975)

Greenland
Qeqertalik ⓘ Disko Island	Pauly (1969) +1 other reference
ⓘ Eqalunguarqat qáqait	Vereshchagin et al. (2024)
ⓘ Kitdlît	ULFF-MØLLER (1985)
ⓘ Maligât Formation	Vereshchagin et al. (2024)
ⓘ Uivfaq	Bird et al. (1981) +1 other reference

Hungary
Veszprém County Veszprém District Nagyvázsony ⓘ Nagy-Vázsony meteorite	Szakáll & Gatter: Hun. Min. Spec.

India
Andhra Pradesh Vizianagaram District ⓘ Nedagolla meteorite	Buchwald (1975)
Madhya Pradesh Jabalpur Division Chhindwara District ⓘ Semarkona meteorite	Taylor et al. (1981) +1 other reference
Rewa District ⓘ Khohar meteorite	Petaev et al. (1997)
Uttar Pradesh Sambhal District ⓘ Bahjoi meteorite	Buchwald (1975) +1 other reference

Indonesia
East Java Province Ngawi Regency ⓘ Ngawi meteorite	Taylor et al. (1981)

Israel
Southern District Beersheba Subdistrict Tamar Regional Council Hatrurim Basin ⓘ Ferroåkermanite type locality	Juroszek et al. (2025)
ⓘ Wadi Halamish	Galuskin et al. (2023)
Wadi Zohar ⓘ Paralava occurrence (2)	Galuskin +1 other reference
ⓘ Paralava occurrence (3)	Futrzyński et al. (2023)
ⓘ Roadside Arad – Dead Sea	Galuskin et al. (2022)

Kazakhstan
Kostanay Region Bischtübe village area ⓘ Bischtübe meteorite	2: 322-324 +2 other references

Kyrgyzstan
Jalal-Abad Region Chatkal district ⓘ Gavasai ore field	Yusupov et al. (1982) +1 other reference

Lesotho
Mokhotlong District ⓘ Letseng Diamond Mine	10.1126/sciadv.abe9773 +1 other reference

Mexico
Coahuila Acuna Municipality ⓘ El Burro meteorite	Buchwald (1975)
Ocampo Municipality ⓘ Coahuila meteorite	Buchwald (1975) +1 other reference
Mexico Jiquipilco (Xiquipilco) ⓘ Toluca meteorite	Bunch et al. (1970) +1 other reference
Sonora Arizpe Municipality Arizpe ⓘ Arispe meteorite	Buchwald (1975)

Mongolia
Dornogovi Province Erdene District ⓘ Khamaryn– Khural–Khiid combustion metamorphic complex	Peretyazhko et al. (2024)
Töv Province Bayan District ⓘ Nyalga combustion metamorphic complexes	Peretyazhko et al. (2024)

New Zealand
Otago Region ⓘ Clipper-1	Newman (2015)

Poland
Greater Poland Voivodeship Poznań ⓘ Morasko meteorite	Stankowski (2001) +3 other references
Lesser Poland Voivodeship Olkusz County ⓘ Bukowno	Ref.: Kucha H.

Russia
Bashkortostan Ishimbaysky District ⓘ Utar-Yurt	Rappenglück (2022)
Buryatia Baunt District ⓘ Uakit iron meteorite	Sharygin (IIAB) +2 other references
Chelyabinsk Oblast ⓘ Kopeysk	Cesnokov et al. (1998)
ⓘ Coal mine No. 45	Chesnokov et al. (1989) +3 other references
ⓘ Mine dump	Avdontceva et al. (2024)
Korkinsky District ⓘ Korkino	Sharygin et al. (2010)
Kamchatka Krai Milkovsky District ⓘ Tolbachik Volcanic field	Gordeev et al. (2014)
Great Fissure eruption (Main Fracture) Northern Breakthrough (North Breach) ⓘ Second scoria cone	Grebennikov (2011)
Krasnoyarsk Krai Maimecha and Kotui Rivers Basin ⓘ Maimechinskaya intrusion	webmineral.ru (2020) +1 other reference
Targhasa massif ⓘ Kaltat Creek	L. N. Novoselova (1986)
Taymyrskiy Autonomous Okrug Taimyr Peninsula ⓘ Khungtukun Massif	Pavel M. Kartashov (n.d.) +1 other reference
Norilsk-Talnakh Mining Region Talnakh Cu-Ni Deposit Oktyabrsky Mine ⓘ Kharaelakh lode	Spiridonov et al. (2016)
Taymyrsky Dolgano-Nenetsky District Kureika river ⓘ Dzheltul'skii massif (Dzhaltul)	Ryabov et al. (2010, October) +1 other reference
ⓘ Olgafrankite type locality	Vereshchagin et al. (2025)
ⓘ Ozernaya Mount	Korsakov et al. (2019)
Magadan Oblast Degdekan rivulet ⓘ Kolyma fulgurite occurrence ?	Plyashkevich et al. (2016) +1 other reference
Orenburg Oblast Yasnensky District Kumak ore field ⓘ Efim area	Hawthorne et al. (1988)
Primorsky Krai Khanka lake ⓘ Fadeevka river placers	Molchanov et al. (2011)
Krasnoarmeysky District Paseka ⓘ Sikhote-Alin meteorite	H. J. Axon et al. (1981)
Pogranichny District ⓘ Boguslavka meteorite	Buchwald (1975)
ⓘ Yakut-Gora volcanic depression	Grebennikov (2011)
Sakha Mirninsky District Daldyn ⓘ Dalnaya pipe	Bulanova et al. (2000)
ⓘ Zarnitsa pipe	Alrosa

Saudi Arabia
Eastern Province Rub' al-Khali ⓘ South Dahna meteorite	Meteoritics

Slovakia (TL)
Žilina Region Námestovo District Námestovo Slanica ⓘ Magura meteorite (TL)	Koděra et al. (1986)

South Africa
Eastern Cape Alfred Nzo District Municipality Umzimvubu Local Municipality ⓘ Mount Ayliff meteorite	Buchwald (1975)
Chris Hani District Municipality Intsika Yethu Local Municipality ⓘ St. Mark's meteorite	Mason (1966)

Spain
Catalonia Lleida Bell-lloc d'Urgell ⓘ Nulles meteorite	Martínez-Frías et al. (1989)

Sudan
River Nile ⓘ Almahata Sitta meteorite	Y. Aoyagi et al. (2013)

Turkey
Ağri Province Eleşkirt District Akyumak village ⓘ Akyumak meteorite	Aksoy et al. (1996)

UK
England Hampshire Portsmouth ⓘ Mary Rose wreck	Simon et al. (2018)

Ukraine
ⓘ Bilokorovitsky structure	Rappenglück (2022)
Crimea Yevpatoria ⓘ Kamenolomnya	Rappenglück (2022)

USA
Arizona Apache County Padres Mesa ⓘ Navajo meteorite	Buchwald (1975)
Coconino County Meteor Crater area ⓘ Canyon Diablo meteorite	Geochimica et Cosmochimica Acta +2 other references
Arkansas Izard County Calico Rock ⓘ Calico Rock meteorite	Buchwald (1975)
California Modoc County Goose Lake ⓘ Goose Lake meteorite	Buchwald (1975) +3 other references
Georgia Pulaski County ⓘ ~~Pulaski County meteorite [faked locality]~~	Cook (1978)
Kansas Marshall County ⓘ Vermillion meteorite	Boesenberg et al. (2000)
Kentucky Allen County ⓘ Scottsville meteorite	Buchwald (1975)
Casey County ⓘ Casey County meteorite	Buchwald (1975)
Montana Broadwater County ⓘ Lombard meteorite	Axon et al. (1972)
New Mexico Curry County ⓘ Grady (1937) meteorite	Ramdohr (1972)
North Carolina Madison County Walnut Mountains ⓘ Duel Hill (1873) meteorite	Buchwald (1975)
South Carolina Chester County ⓘ Chesterville meteorite	Buchwald (1975)
Laurens County ⓘ Laurens meteorite ?	Buchwald (1975)
Lexington County ⓘ Lexington meteorite	Buchwald (1975) +1 other reference
Tennessee Cocke County ⓘ Cosby's Creek meteorite	Buchwald (1975)
Smith County Carthage ⓘ Carthage meteorite	Farrington (1915)
Texas Brewster County Study Butte ⓘ Study Butte meteorite	Wlotzka et al. (1988) +2 other references
Ector County Odessa ⓘ Odessa craters	J. I. Goldstein THE DISTRIBUTION OF Ge ... +1 other reference
Runnels County ⓘ Ballinger meteorite	Clarke et al. (1978)

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Cohenite

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