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

[Impactika at aol.com]

In a message dated 10/27/2006 1:20:28 P.M. Mountain Standard Time,  
bernd.pauli at paulinet.de writes:
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______________________________________________

They  have also been found in Saint Aubin, another anomalous iron..
Very few of them, but as green as emeralds!

Anne M.  Black
www.IMPACTIKA.com
IMPACTIKA at aol.com
President, I.M.C.A.  Inc.
www.IMCA.cc