Wiktionary
haxonite
n. (context mineral English) An iron nickel carbide mineral.
Wikipedia
Haxonite
Haxonite is an iron nickel carbide mineral found in iron meteorites and carbonaceous chondrites. It has a chemical formula of (Fe,Ni)C, crystallises in the cubic crystal system and has a Mohs hardness of 5½ - 6.
It was first described in 1971, and named after Howard J. Axon (1924–1992), metallurgist at the University of Manchester, Manchester, England. Co-type localities are the Toluca meteorite, Xiquipilco, Mexico and the Canyon Diablo meteorite, Meteor Crater, Coconino County, Arizona, US.
It occurs associated with kamacite, taenite, schreibersite, cohenite, pentlandite and magnetite.