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An MPOD Classic from from 29 March 2012


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Gibeon   contributed by Corey Kuo, IMCA 2288   MetBul Link

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View all entries for   Meteorite (45)   Corey Kuo (9)


Approximately 200 gram full slice. Iron IVA

Corey writes:
Sometimes we use acid to make a very thin passivation membrane on the surface to protect from rust. The basic principle is to use an acid like nitric or sulfuric in very high concentration (>70%). I've devised a special way of passivation that made this Gibeon slice show many colors from different angles on the surface - blue, gold, pink, brown.

More about passivation here

  Click to view larger photos     #1


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Jansen Lyons

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chris urbano
 3/30/2017 11:20:09 AM
Thanks Paul !
Paul Swartz
 3/29/2017 12:04:47 PM
The link was, indeed, broken so I replaced it with a reference to The Unimpeachable Source (Wikipedia) :)
christophe urbano
 3/29/2017 9:58:35 AM
Hello, very nice,aestethic, result.. i try to read the link to the passivation infos.. but the link seem to be dead.. greetings from Belgium.
MexicoDoug
 3/29/2017 12:34:20 AM
Very flashy bluing, thanks for the Classic Gibeon, Corey & Paul!
 

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