Widmanstätten pattern
A characteristic cross-hatched pattern that becomes visible on the surface of octahedrites (the commonest type of iron meteorites) and pallasites after polishing and etching with nital (nitric acid in solution with ethanol). It is due to an intergrowth of crystals of nickel-rich taenite and nickel-poor kamacite. It is named after its discoverer, the Austrain mineralogist Alois von Beckh Widmanstätten (1754-1849).
Related category
• METEORS AND METEORITES
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)
BACK TO TOP
|
