Cohenite = [(Fe,Ni,Co)3C]
Hello Martin and List, > I never saw a hexaedrite, a IIG, a IIAB, a IIE, > a IIIAB with cohenite and they have <7% Ni. Angra dos Reis (iron): Cohenite was noted in one place as a cluster of 10-50 � frayed (= to cause strain on sth.) units. Arispe: Cohenite has provided carbon for local martensite-bainite formation. A most unique characteristic of Arispe is the distribution of the cohenite nests. Cohenite is also present as a 100-200 � thick envelope around the larger schreibersite bodies. Bendego: Cohenite is present in significant amounts. Chihuahua City: .. composed of polycrystalline Fe/Ni with cohenite. Etosha: .. cohenite inclusions with unusual morphologies Lake Murray: .. cohenite is decomposed to graphite and granular kamacite Santa Rosa: Polycrystalline iron with cohenite and graphite. References: BUCHWALD V.F. (1975) Handbook of Iron Meteorites. BRETT R. (1967) Cohenite: Its occurrence and a proposed origin (GCA 31, 143-159). Best wishes, Bernd ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
