Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Cohenite

This page is currently not sponsored. Click here to sponsor this page.
Emil Cohen
Formula:
(Fe,Ni,Co)3C
System:
Orthorhombic
Hardness:
5½ - 6
Name:
In honor of Emil Wilhelm Cohen (1842–1905), Professor of Mineralogy, University of Greifswald, Greifswald, Germany.
In technical iron alloys, cohenite is well-known as a synthetic phase and is called cementite (Zementit in German).

Classification of Cohenite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
1.BA.05

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
A : Carbides
Dana 7th ed.:
1.1.24.1
1.1.16.1

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
2.11

2 : Carbides, Nitrides, Silicides and Phosphides
mindat.org URL:
http://www.mindat.org/min-1107.html
Please feel free to link to this page.

First Recorded Occurrence of Cohenite

Year of Discovery:
1889

Physical Properties of Cohenite

Hardness (Mohs):
5½ - 6

Crystallography of Cohenite

Crystal System:
Orthorhombic
Cell Parameters:
a = 5.09Å, b = 6.74Å, c = 4.52Å
Ratio:
a:b:c = 0.755 : 1 : 0.671
Unit Cell Volume:
V 155.07 ų (Calculated from Unit Cell)

Chemical Properties of Cohenite

Formula:
(Fe,Ni,Co)3C
Essential elements:
All elements listed in formula:

Relationship of Cohenite to other Species

1.BA.10Haxonite(Fe,Ni)23C6
1.BA.10Isovite(Cr,Fe)23C6
1.BA.15TongbaiteCr3C2
1.BA.20Khamrabaevite(Ti,V,Fe)C
1.BA.20Niobocarbide(Nb,Ta)C
1.BA.20TantalcarbideTaC
1.BA.25QusongiteWC
1.BA.30YarlongiteCr4Fe4NiC4
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
2.12Roaldite(Fe,Ni)4N
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 Cohenite

Name in Other Languages:

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 Cohenite

Reference List:
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I: 122-123.

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

Internet Links for Cohenite

Localities for Cohenite

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.
Antarctica
 
  • Eastern Antarctica
    • Queen Maud Land (Dronning Maud Land)
      • Queen Fabiola Mts (Yamato Mts)
Twentieth Symposium on Antarctic Meteorites. Proceedings of the NIPR Symposium, No. 9, held June 6-8, 1995, at the National Institute of Polar Research, Tokyo. Editor in Chief, Hideyasu Kojima, with Naoya Imae, Makoto Kimura, Akira Shimoyama, Nobuo Takaoka. Published by the National Institute of Polar Research, 1996, p.79
Twentieth Symposium on Antarctic Meteorites. Proceedings of the NIPR Symposium, No. 9, held June 6-8, 1995, at the National Institute of Polar Research, Tokyo. Editor in Chief, Hideyasu Kojima, with Naoya Imae, Makoto Kimura, Akira Shimoyama, Nobuo Takaoka. Published by the National Institute of Polar Research, 1996, p.79
    • Victoria Land
      • Allan Hills
Nature 291:396-398 (1981)
Berkley, J. L. & Goodrich, C. A. (1985) Cohenite-Bearing Metallic Spherules in Ureilites: Petrology and Implications (Abstract). Lunar and Planetary Science XVI, 49-50. (March 1985)
Twentieth Symposium on Antarctic Meteorites. Proceedings of the NIPR Symposium, No. 9, held June 6-8, 1995, at the National Institute of Polar Research, Tokyo. Editor in Chief, Hideyasu Kojima, with Naoya Imae, Makoto Kimura, Akira Shimoyama, Nobuo Takaoka. Published by the National Institute of Polar Research, 1996, p.79; Brearley, A. J. & Jones, R. H. (1998). Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA. (1998)
Argentina
 
  • Chaco
    • Doce de Octubre Department
      • Gran Chaco
Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
Australia
 
  • Northern Territory
    • MacDonnell Region
      • Henbury Cattle Station
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
  • Victoria
    • Melbourne
      • Cranbourne
Cohen, E. W. (1897): Meteoric iron from Beaconsfield, Australia. Sitz.-ber. Akad. Berlin, 1035-1050 (in German).
  • Western Australia
    • Dundas Shire
      • Mundrabilla Roadhouse
Simpson, E.S. (1938), Some New and Little Known Meteorites Found in Western Australia, Mineralogical Magazine: 25 (December, 1938): 157-171.
    • Meekatharra Shire
      • Belele Station
Some New and Little Known Meteorites Found in Western Australia; E. Simpson, Mineralogical Magazine, Dec 1938, pp157-171
      • Bulloo Downs Station
Some New and Little Known Meteorites Found in Western Australia; E. Simpson; Mineralogical Magazine, Dec 1938, pp157-171
      • Wonyulgunna Station
Some New and Little Known Meteorites Found in Western Australia; E. Simpson; Mineralogical Magazine, Dec 1938, pp157-171
    • Quairading Shire
DeLaeter, J. R. (1973) The Youndegin Meteorite: Meteoritics 8(2): 169-179. (June 1973); Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Azerbaijan
 
  • Naxçıvan District (Naxcivan; Nakhichevan)
    • Shusha
Mason, B. H. (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30. (Jan 1966)
Brazil
 
  • Goiás
    • Uruaçu
The Meteoritical Bulletin, No. 86, 2002, July, p. A177
Burkina Faso
 
  • N'Gourma
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Canada
 
  • Alberta
    • Abee
Dawson, K. R.; Maxwell, J. A.; Parsons, D. E. () A description of the meteorite which fell near Abee, Alberta, Canada. Geochimica et Cosmochimica Acta, Volume 21, Issue 1-2, p. 127-127.
China
 
  • Guangxi Zhuang Autonomous Region
    • Hezhou Prefecture
Lin, S. & Hsu, W.B. (2007) Mineralogical and chemical classification of Zhaoping, Xifu and Hami iron meteorites. Chinese Astronomy and Astrophysics vol 32, issue 3, pp 293-305. (July 2007)
  • Hubei Province
    • Enshi Autonomous Prefecture (E'xi Autonomous Prefecture)
      • Jianshi Co.
Wen Chuanfen (1980) Study of the Jianshi and Leshan Siderites (abstract). Chinese Journal of Geology [Sci. Geol. Sinica] 15(3): 292-295.
  • Xinjiang Autonomous Region
    • Changji Autonomous Prefecture (Sanji Autonomous Prefecture)
      • Mori Co. (Mulei Co.)
Lin Xu, Bingkui Miao, Yangting Lin, and Ziyuan Ouyang (2008): Meteoritics & Planetary Science 43(8), 1263-1273
Finland
 
  • Southwestern Finland Region
    • Huittinen
Mason, B. H. (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30. (Jan 1966)
Germany
 
  • Hesse
    • Kassel
      • Weimar
P, Ramdohr, Ore Minerals and their Intergrowths, 2nd ed., vol 1, pg 355.
Greenland
 
  • Qaasuitsup
Contrib.Mineral Petrol (1981) 77:307-324; Pauly, H. (1969): White cast iron with cohenite, schreibersite, and sulphides from tertiary basalts on Disko, Greenland. Meddelelser fra Dansk Geologisk Forening, 19 (1), 28-26
Ulff-Møller, F. (1985): Solidification History of the KitdlÎt Lens: Immiscible Metal and Sulphide Liquids from a Basaltic Dyke on Disko, Central West Greenland Journal of Petrology. 26,64-91.
Hungary
 
  • Veszprém Co.
    • Bakony Mts
      • Nagyvázsony
Szakáll & Gatter: Hun. Min. Spec., 1993
India
 
  • Andhra Pradesh
    • Visakhapatnam District
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
  • Madhya Pradesh
Taylor, G. J., Okada, A., Scott, E. R. D., Rubin, A. E., Huss, G. R. & Keil, K. (1981) The Occurrence and Implications of Carbide-Magnetite Assemblages in Unequilibrated Ordinary Chondrites (abstract). Lunar and PLanetary Science XII: 1076-1078. ( March 1981); Keller, L. P. (1998) A TEM study of iron-nickel carbides in the matrix of the Semarkona unequilibrated ordinary chondrite: Meteoritics & Planetary Science 33(4): 913-919. (July 1998)
  • Uttar Pradesh
    • Morabad district
Buchwald, V. F. (1975) Handbook of Iron Meteorites. vol 2. University of California Press.
Mexico
 
  • Mexico
    • Jiquipilco (Xiquipilco)
Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.; Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
Poland
 
  • Małopolskie
    • Olkusz District
Ref.: Kucha H., Jędrzejczyk B. 1995: Primary minerals of mining and metallurgical Zn-Pb dumps at Bukowno, Poland, and their stability during weathering. Mineralogia Polonica, vol. 26, No 2, 75-99
  • Wielkopolskie
    • Poznan
WOJCIECH STANKOWSKI, GEOCHRONOMETRIA Vol. 20, pp 103-106, 2001 ñ Journal on Methods and Applications of Absolute Chronology
Russia
 
  • Eastern-Siberian Region
    • Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai)
      • Targhasa massif
L. N. Novoselova, A. Yu. Lyul (1986) Geochemical characteristics of iron silicides from Lower Cambrian reefal limestones, Krasnoyarsk. International Geology Review 28:114-118
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Khatanga
          • Malaya Romanikha River
P.M. Kartashov data
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
Grebennikov, A. V. (2011). Silica-metal spherules in ignimbrites of southern Primorye, Russia. Journal of Earth Science, 22(1), 20-31.
    • Primorskiy Kray
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
      • Sikhote-Alin Mts
        • Paseka village
H. J. Axon, J. Kinder, C. W. Haworth and J. W. Horsfield (1981) Carlsbergite, CrN, in Troilite, FeS, of the Sikhote Alin Meteoritic Iron. Mineralogical Magazine 44:107-109.
Grebennikov, A. V. (2011). Silica-metal spherules in ignimbrites of southern Primorye, Russia. Journal of Earth Science, 22(1), 20-31.
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Chelyabinsk coal basin
Cesnokov, B., M. Kotrly, and T. Nisanbajev (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Saudi Arabia
 
  • Mintaqah Ash Sharqiyah
    • Rub' al-Khali
Meteoritics, Vol. 17, p.179
Slovakia
 
  • Žilina Region
    • Námestovo Co.
      • Námestovo
        • Slanica
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
South Africa
 
  • Eastern Cape Province
    • Chris Hani District
Mason, B. H. (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30. (Jan 1966)
Sudan
 
  • Nar an Nil
Y. Aoyagi, T. Mikouchi, C. A. Goodrich, Michael E. Zolensky (2013). Mineralogy of Grain Boundary Metal in Ureilitic Fragments of Almahata Sitta. 76th Annual Meeting of the Meteoritical Society, held July 29-August 7, 2013 in Edmonton, Canada. Published in Meteoritics and Planetary Science Supplement, id.5231. (Sept 2013)
The Moon
J. Frondel (2009), Lunar Mineralogy, Wiley Interscience
Turkey
 
  • Eastern Anatolia Region
    • Ağri Province
      • Akyumak village
Aksoy, I., Ceylan, M. & Kayali, N. (1996) Phase investigation of an iron meteorite from Akyumak. J. Mater. Process. Technol. 57 (3 - 4): 221 - 224 (Feb 1996)
USA
 
  • Arizona
    • Coconino Co.
      • Winslow
        • Meteor Crater and vicinity
Geochimica et Cosmochimica Acta, vol. 31, Issue 4, pp.621-628
  • Arkansas
    • Izard Co.
      • Calico Rock
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
  • California
    • Modoc Co.
      • Goose Lake
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 59.
  • Georgia
    • Pulaski Co.
Minerals of Georgia: Their properties and occurrences GGWRD Bull 92
  • Kansas
    • Marshall Co.
Boesenberg, J. S., Davis, A.M., Prinz, M., Weisberg, M.K., Clayton, R.N. & Mayeda, T.K. (2000) The pyroxene pallasites, Vermilion and Yamato 8451: Not quite a couple. Meteoritics & Planetary Science 35 (4): 757-769. (July 2000)
  • Kentucky
    • Allen Co.
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 3 volumes, 1418 pages.
    • Casey Co.
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 3 volumes, 1418 pages.
  • Nevada
    • Clark Co.
NBMG Spec. Pub. 31 Minerals of Nevada
  • North Carolina
    • Madison Co.
      • Walnut Mts
Buchwald, Vagn F.,(1975) Handbook of Iron Meteorites
  • South Carolina
    • Chester Co.
Buchwald,Vagn F.,(1975) Handbook of Iron Meteorites
    • Laurens Co.
Buchwald,Vagn F.,(1975) Handbook of Iron Meteorites
    • Lexington Co.
Buchwald,Vagn F.,(1975) Handbook of Iron Meteorites
  • Tennessee
    • Cocke Co.
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
  • Texas
    • Ector Co.
      • Odessa
J. I. Goldstein THE DISTRIBUTION OF Ge IN THE METALLIC PHASES OF SOME IRON METEORITES GODDARD SPACE FLIGHT CENTER
Mineral and/or Locality  
Copyright © mindat.org 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: January 30, 2015 08:03:04 Page generated: January 26, 2015 09:55:50