Re-2: [meteorite-list] Shirokovsky etching

[bernd.pauli at paulinet.de]

> My question is what it is ? Why this pattern looks like this ?

> http://www.meteoryt.net/ebay/shirokovsky_112a.jpg
> http://www.meteoryt.net/ebay/shirokovsky_112b.jpg
> http://www.meteoryt.net/ebay/shirokovsky_112c.jpg
> http://www.meteoryt.net/ebay/shirokovsky_112d.jpg


Hello All,

A genuine Widmannstätten pattern can only develop if the
cooling process is long and slow enough. This Shirokovsky
pseudopallasite cooled too quickly.

Cheers,

Bernd