Hexahedrite（方陨铁，即六面体铁陨石）
Hexahedrites are a type of iron meteorite. They are composed almost exclusively of the nickel-iron alloy kamacite, and are lower in nickel content than the Octahedrites.
（方陨铁是铁陨石的一种类型。几乎全部由铁纹石组成，镍成分低于八面体陨铁）The name comes from the cubic (i.e. hexahedron) structure of the kamacite crystal. After etching, hexahedrites do not display a Widmansttten pattern, but they often do show Neumann lines: parallel lines that cross each other at various angles, and are indicative of impact shock on the parent body. They are named after Franz Ernst Neumann, who discovered them in 1848.
（名字来源于铁纹石的立方体，六面体的结构。经过酸蚀处理后，六面体陨铁不会呈现维斯台登构造，而是常常露出纽曼线：即按照不同角度相互交叉的平行线，这说明陨石的母体遭受了冲击效应。）
Neumann lines（纽曼线）
Neumann lines, or Neumann bands, are fine patterns of parallel lines seen in cross-sections of many hexahedrite iron meteorites in the kamacite phase. They can be seen after a polishe
Hexahedrites are a type of iron meteorite. They are composed almost exclusively of the nickel-iron alloy kamacite, and are lower in nickel content than the Octahedrites.
（方陨铁是铁陨石的一种类型。几乎全部由铁纹石组成，镍成分低于八面体陨铁）The name comes from the cubic (i.e. hexahedron) structure of the kamacite crystal. After etching, hexahedrites do not display a Widmansttten pattern, but they often do show Neumann lines: parallel lines that cross each other at various angles, and are indicative of impact shock on the parent body. They are named after Franz Ernst Neumann, who discovered them in 1848.
（名字来源于铁纹石的立方体，六面体的结构。经过酸蚀处理后，六面体陨铁不会呈现维斯台登构造，而是常常露出纽曼线：即按照不同角度相互交叉的平行线，这说明陨石的母体遭受了冲击效应。）
Neumann lines（纽曼线）
Neumann lines, or Neumann bands, are fine patterns of parallel lines seen in cross-sections of many hexahedrite iron meteorites in the kamacite phase. They can be seen after a polishe