[meteorite-list] Classifying meteorites. HELP!

[Graham Christensen]

Hello list,
I haven't posted in a while, I have been busy with school work and I just 
got my report card (81% in physics :). I just got a whole bunch of 
unidentified meteorites from Northwest Africa that were sent to me by Simon 
de Boer (Thanks again Simon :) and I want to try classifying them. I need 
suggestions/tips/general rules about how to identify them. I am pretty sure 
they are all ordinary chondrites, they all have metal flake and chondrules 
except for a few badly weathered ones. Are there any keys for meteorites 
like there are for identifying insects and plants? Many of them don't look 
like any of the ones in my collection and photos on the internet don't show 
the fine details so I really have nothing to compare them to. I have some 
guesses on some of them but I would rather go about this scientifically. One 
of them has a few giant chondrules or inclusions in it. And one has so much 
metal in it it almost looks like a mesosiderite but with chondrules. A few 
of them have armoured chondrules, those are really neat. Any information 
would be greatly appreciated.

Thanks.

Graham Christensen
[EMAIL PROTECTED]
http://www.geocities.com/aerolitehunter


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Re: [meteorite-list] Classifying meteorites. HELP!

[Jay Haynes]

Hi Graham,

I an by far no expert on this but here is what I did a year or so back when i got a few NWA's. Generally try to find as many pictures of slices or interiors of meteorites as you can find (NWA slices usually are the best for ID'ing similiar meteorites like you have) And really just try and compare them to the picture of one that is already classified. Your might not be right on but you probably could have a good idea of what you have. The only way to be really sure would be to take a small piece (bout the size of a fingernail) and send it off to a university or museum and they could ID it there for sure. I dont know if the Geological Survery of Canada does it seeing they are only really interestred in Canadian meteorites.

Clear Skies  Happy Hunting,

Jay Haynes

IMCA Member #:6905

www.geocities.com/cdnastronomer/meteorite.html





From: "Graham Christensen" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] 
Subject: [meteorite-list] Classifying meteorites. HELP! 
Date: Sat, 13 Apr 2002 01:10:07 -0600 
 
Hello list, 
I haven't posted in a while, I have been busy with school work and I 
just 
got my report card (81% in physics :). I just got a whole bunch of 
unidentified meteorites from Northwest Africa that were sent to me 
by Simon 
de Boer (Thanks again Simon :) and I want to try classifying them. I 
need 
suggestions/tips/general rules about how to identify them. I am 
pretty sure 
they are all ordinary chondrites, they all have metal flake and 
chondrules 
except for a few badly weathered ones. Are there any keys for 
meteorites 
like there are for identifying insects and plants? Many of them 
don't look 
like any of the ones in my collection and photos on the internet 
don't show 
the fine details so I really have nothing to compare them to. I have 
some 
guesses on some of them but I would rather go about this 
scientifically. One 
of them has a few giant chondrules or inclusions in it. And one has 
so much 
metal in it it almost looks like a mesosiderite but with chondrules. 
A few 
of them have armoured chondrules, those are really neat. Any 
information 
would be greatly appreciated. 
 
Thanks. 
 
Graham Christensen 
[EMAIL PROTECTED] 
http://www.geocities.com/aerolitehunter 
 
 
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