octahedrite definition

  • noun:
    • The mineral anatase.
    • Titanium dioxide occurring in acute octahedral crystals.
    • Titanium dioxid, crystallizing within the tetragonal system, the fundamental and commonly happening form being an acute square octahedron (whence the name); anatase.
    • A meteoric iron with octahedral framework, which is typically distinctly marked by the lamellæ of kamacite, tænite, and plessite, noticed in the Widmannstättian figures. Most iron meteorites fall-in this course. See meteorite.

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