[meteorite-list] Pyroxene Crystals in Mike's Patagonian Iron

[Fred Caillou Noir]

I agree, they are absolutely "BREATHTAKING"!
Congratulations, it is a marvelous meteorite.
Cheers,

Frederic
----- Original Message ----- 
From: <bernd.pauli at paulinet.de>
To: <Meteorite-list at meteoritecentral.com>
Sent: Friday, October 27, 2006 9:17 PM
Subject: [meteorite-list] Pyroxene Crystals in Mike's Patagonian Iron


> Mike Farmer wrote:
> 
> Take a look at this, I got a box full of slices today, and they are simply breathtaking!
> Marlin Cilz told me he has not cut a more beautful iron. What do the list members think
> the large emerald green crystals are? Pyroxene? Every slice seems to have one or two of
> them. The silicated and etch pattern in the silicated area reminds me a lot of Steinbach. 
> 
> http://meteoriteguy.com/collection/Patagoniairon.htm
> 
> Beautiful crystals, they are! Yes, I think they are pyroxene crystals (augite), probably
> diopside [CaMgSi2O6]. Diopside has been found in these irons: Caddo County, Four Corners,
> Ocotillo, and Udei Station. The most interesting of these with regard to Mike's iron is
> probably Four Corners because of its polycrystallinity, its silicate-graphite inclusions,
> its Neumann bands. Four Corners is anomalous and Mike's iron will surely be classified
> as an anomalous iron, too!
> 
> Congratulations!
> 
> Bernd
> 
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