Mineral Information and Data:

Cohenite
Fe3C [CNMNC approved formula]

Named for Emil Wilhelm Cohen (1842-1905), Professor of Mineralogy, University of Greifswald, Greifswald, Germany.

IMA status : Valid species (Pre-IMA 1889) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
01.01.16.01  
  (01) Native Elements
  (01.01) with metallic elements other than the platinum group
  (01.01.16)
  
Nickel-Strunz
(10th edition) :
01.BA.05
  (01) Elements
  (01.B) Metallic Carbides, Silicides, Nitrides and
  (01.BA) Carbides
  
Crystal system: Orthorhombic System
Point group (H-M): mmm (or 2/m 2/m 2/m) — dipyramidal
  
  
Geologic Setting: In iron meteorites, also in terrestrial iron, in mafic rocks chemically reduced from the assimilation of graphite.
  

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