Physics
Scientific paper
Mar 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981phys...23..301a&link_type=abstract
Physica Scripta, vol. 23, Mar. 1981, p. 301-306. Research supported by the Statens Naturvidenskabelige Forskningsrad.
Physics
14
Crystal Structure, Iron Meteorites, Lattice Parameters, Meteoritic Composition, Anisotropy, Face Centered Cubic Lattices, Iron Alloys, Minerals, Nickel Alloys, Phase Transformations, X Ray Diffraction, Meteorites, Tetrataenite, Taenite, Alloys, Iron, Nickel, Structure, Mineralogy, Composition, Patterns, Iron Meteorites, Mesosiderites, Lamellae, Optical Properties, Anisotropy, Experiments, Procedure, Photomicrographs, X-Ray Diffraction, Analysis, Odessa Meteorite, Size, Mincy Meteorite, Toluca Meteorite, Day
Scientific paper
It is noted that while the ordering of taenite leads to a change of symmetry from face-centered cubic to tetragonal, no tetragonal distortion of the lattice has previously been observed. Here, the mineral composition of the taenite fields in meteorites is briefly reviewed and the lattice parameters of well ordered, stoichiometric tetrataenite from three iron meteorites and one mesosiderite are reported. It is found that the lattice exhibits tetragonal symmetry, the lattice parameters associated with the unit cell containing four atoms being a = 3.5761 + or - 0.0005 A, c = 3.5890 + or - 0.0005 A, and c/a = 1.0036 + or - 0.0002.
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