Widmanstätten patterns, also known as Thomson structures, are figures of long phases of nickel–iron, found in the octahedrite shapes of iron meteorite...

Widmanstätten. He is known for recognizing a unique pattern of cross-hatching lines on the surface of iron-rich meteorites, now called Widmanstätten patterns...

(H): low nickel, no Widmanstätten pattern, may present Neumann lines; Octahedrites (O): average to high nickel, Widmanstätten patterns, most common class...

that can be seen by etching or in thin sections of meteorites. The Widmanstätten pattern forms when meteoric iron cools and kamacite is exsolved from taenite...

meteorite provides a classic example of fine octahedrite and the Widmanstätten pattern is appreciated for its beauty both by collectors and designers of...

commonly referred to as the Widmanstätten pattern after a similar discovery in 1808 by Count Alois von Beckh Widmanstätten, the director of the Imperial...

is the achondritic iron-nickel octahedrite mineral seen in the Widmanstätten pattern that is found in a number of iron-rich meterorites. Consisting of...

history of plants Mathematics and art Morphogenesis Pattern formation Widmanstätten pattern Footnotes The so-called Pythagoreans, who were the first to take...

camouflage patterns used on ships in World War I. Others describe patterns within the arc as resembling herringbone or Widmanstätten patterns. The visual...

octahedrites it is found in bands interleaving with taenite forming Widmanstätten patterns. In hexahedrites, fine parallel lines called Neumann lines are often...

orthopyroxene content (about 5%). Metal matrix shows a fine octahedrite Widmanstätten pattern. Pallasite ungrouped (P-ung): Specimens that don't fit into any...

Widmanstätten pattern of a meteorite from Cape York (Greenland)...

meteorite, believed to be similar in composition to the Earth's metallic core, showing individual crystals of the iron-nickel alloy (Widmanstatten pattern)...

Octahedrites can be grouped by the dimensions of kamacite lamellae in the Widmanstätten pattern, which are related to the nickel content: Coarsest octahedrites...

Widmanstätten pattern in NiFe octahedrite meteorite...

Slice (across 9.6 cm) of a Muonionalusta meteorite fragment, showing the Widmanstätten pattern....

octahedrites it is found in bands interleaving with kamacite forming Widmanstätten patterns, whereas in ataxites it is the dominant constituent. In octahedrites...

Fall date 49000 years ago Found date 1891 TKW 30 tonnes Strewn field Yes Etched slice showing a Widmanstätten pattern Related media on Wikimedia Commons...

Widmanstätten pattern showing the two forms of nickel–iron, kamacite and taenite, in an octahedrite meteorite...

A Wabar meteorite: etched section showing the Widmanstätten pattern....

Willamette has a recrystallized structure with only traces of a medium Widmanstätten pattern; it is the result of a significant impact-heating event on the parent...

shows an interesting, seldom seen feature of iron meteorites. The Widmanstätten pattern on the left hand side of the specimen is visibly bent. This is caused...

class of iron meteorites with a high nickel content and show no Widmanstätten patterns upon etching. Ataxites are composed mainly of meteoric iron, a native...

Kelvin Thomson structure (a.k.a. Widmanstätten pattern) – William (Guglielmo) Thomson (or Count Alois von Beckh Widmanstätten) Thorndike's laws (of effect...

chemical elements that have low boiling and condensation temperatures. Widmanstätten pattern – a fine interleaving of kamacite and taenite bands/ribbons found...

revealed by chemical attack, shows needle-like grains typical of a Widmanstätten pattern. Upon annealing below the phase transition temperature (α-Zr to...

An iron–nickel meteorite with characteristic Widmanstätten pattern....

a monoclinic ɑ″ phase that is observed metallographically as a Widmanstätten pattern. The crystal structure of the alloy has been studied, particularly...

which form at specific angles determined by the lattice, called Widmanstatten patterns. Ionic compounds typically form when a metal reacts with a non-metal...

meteoric iron, in that it contains both a significant amount of nickel and Widmanstatten structures. However, telluric iron typically contains only around 3%...