[meteorite-list] crystals in meteorites?

From: mafer_at_domafer.com <mafer_at_meteoritecentral.com>
Date: Thu Apr 22 10:07:02 2004
Message-ID: <8199.24.69.255.202.1034902496.squirrel_at_140.186.45.27>

Hi Tom and list
Crystals can be found in any of the meteorites that have undergone
differenciation (melting basicly) and the cooling process is slow enough.
Only those undifferenciated meteorites can be different. The crystals can
be easily seen in thin section as (in petrologist terms) hedral (a
complete crystaline shape, subhedral not a complete crystal outline like
its been broken but some faces can be distinguished, and anhedral which is
no crystal shape at all. Sometimes within olivine chondrules one sees
filiments of pyroxene , these filiments are crystals as well.Mark

>
> Hello List, What is all this talk about crystals in a meteorite? And,
> Could some one explain why, if there is crystals in a meteorite, why I
> have been told a number of times "this CAN NOT be a meteorite because
> meteorites don't have crystals"? : )
>
> Thanks, Tom
>
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Received on Thu 17 Oct 2002 08:54:56 PM PDT