Английская Википедия:Cohenite

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Шаблон:Short description Шаблон:Infobox mineral

Cohenite is a naturally occurring iron carbide mineral with the chemical structure (Fe, Ni, Co)3C. This forms a hard, shiny, silver mineral which was named by E. Weinschenk in 1889 after the German mineralogist Emil Cohen, who first described and analysed material from the Magura meteorite found near Slanica, Žilina Region, Slovakia.[1] Cohenite is found in rod-like crystals in iron meteorites.[2]

On Earth cohenite is stable only in rocks which formed in a strongly reducing environment and contain native iron deposits. Such conditions existed in some places where molten magmas invaded coal deposits, e.g. on Disko Island in Greenland, or at the Bühl near Kassel in Germany.[3]

Associated minerals include native iron, schreibersite, troilite and wustite.[3]

Similar iron carbides occur also in technical iron alloys and are called cementite.

See also

References

Шаблон:Reflist

Шаблон:Meteorites

  1. Ошибка цитирования Неверный тег <ref>; для сносок Mindat не указан текст
  2. Vagn F. Buchwald, Handbook of Iron Meteorites, University of California Press, 1975 Шаблон:ISBN
  3. 3,0 3,1 Ошибка цитирования Неверный тег <ref>; для сносок HBM не указан текст