11. Kamacite occurs naturally only in meteorites.12. When polished and acid etched the classic Widmanst�tten patterns of intersecting lines of lamellar kamacite , are visible. 13. In gaps between the kamacite and taenite lamellae, a fine-grained mixture called plessite is often found. 14. The meteorite, comprising ordinary chondrite with traces of pyroxene, feldspar and kamacite , was subsequently gifted to Museum Victoria. 15. At times kamacite can be found so closely intermixed with taenite that it is difficult to distinguish them visually, forming plessite. 16. In octahedrites it is found in bands interleaving with kamacite forming Widmanst�tten patterns, whereas in ataxites it is the dominant constituent. 17. "' Kamacite "'is an alloy of iron and nickel, which is found on Earth only in meteorites. 18. Thirty percent of the meteorite is the iron-rich metallic phases kamacite and taenite, with the rest mostly made up of olivine. 19. Taenite contains more nickel ( 12 to 45 wt . % Ni ) than kamacite ( which has 5 to 12 wt . % Ni ). 20. About 1 in 20 meteorites consist of the unique iron-nickel minerals taenite ( 35 80 % iron ) and kamacite ( 90 95 % iron ).
