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Neumann lines
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Neumann lines, or Neumann bands, are fine patterns of parallel lines seen in cross-sections of many hexahedrite iron meteorites in the kamacite phase, although they may appear also in octahedrites pro
Neumann lines[clarification needed] in an iron meteorite
Neumann lines[clarification needed] in an iron meteorite
Iron meteorite showing relatively homegenous crystal formation with hexadedrite lamellae line, 1901
Iron meteorite showing relatively homegenous crystal formation with hexadedrite lamellae line, 1901
Widmanstätten pattern
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A Widmanstätten pattern, also known as a Thomson structure, is a figure of long phases of nickel–iron, found in the octahedrite shapes of iron meteorite crystals and some pallasites.
Segment of the Toluca meteorite, about 10 cm wide
Segment of the Toluca meteorite, about 10 cm wide
Widmanstätten pattern in the Staunton meteorite, found near Staunton, Virginia in the mid-19th century. Six pieces of nickel-iron were located over a
Widmanstätten pattern in the Staunton meteorite, found near Staunton, Virginia in the mid-19th century. Six pieces of nickel-iron were located over a period of some decades, with a total weight of 270 lb.
The fine Widmanstätten pattern (lamellae width 0.3mm) of a Gibeon meteorite.
The fine Widmanstätten pattern (lamellae width 0.3mm) of a Gibeon meteorite.
Etched slice of a Canyon Diablo meteorite showing a Widmanstätten pattern
Etched slice of a Canyon Diablo meteorite showing a Widmanstätten pattern