[meteorite-list] CAI inclusions

From: Greg Catterton <star_wars_collector_at_meteoritecentral.com>
Date: Sun, 7 Aug 2011 21:59:06 -0700 (PDT)
Message-ID: <1312779546.96251.YahooMailNeo_at_web46416.mail.sp1.yahoo.com>

Speaking of big CAIs... Here is a rather nice 1cm plus CAI from a new CV3 I had classified. (still provisional at this time)
http://i27.photobucket.com/albums/c165/jedisdiamond/NWA6717Mainmass.jpg

Here
 is the "CAI stone", which came from another group of NWA carbonaceous
stones (not the same as above and still under classification). This one
is on its way to Germany for research and study (may be the largest CAI
ever!) but is still nice to look at. I am excited for the results of
this one...
http://i27.photobucket.com/albums/c165/jedisdiamond/DSCF5377.jpg
http://i27.photobucket.com/albums/c165/jedisdiamond/DSCF5367.jpg

I have CM, CO, CR and CV that all have CAIs visible.

Greg Catterton
www.wanderingstarmeteorites.com
On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites
On Facebook: http://www.facebook.com/WanderingStarMeteorites


________________________________
From: Sterling K. Webb <sterling_k_webb at sbcglobal.net>
To: meteorite-list at meteoritecentral.com
Cc: E.P. Grondine <epgrondine at yahoo.com>
Sent: Sunday, August 7, 2011 1:16 AM
Subject: Re: [meteorite-list] CAI inclusions

E. P.,

> Simple question - what classes of
> meteorites have CAI inclusions?

Simple answer: any kind of chondrite.

However, most common in carbonaceous
chondrites, particularly CV's. They contain
more refractory elements than the "ordinary"
condrules they are found with. They were
formed at higher temperatures and many
show signs of repeated meltings. They are
older than the next most early solar system
materials, the chondrules, by 2,000,000
years or so. Two different dating methods
give ages of 4567 my and 4571 my.for CAI's.


Sterling K. Webb
--------------------------------------------------------
08-07-11, 12:16 AM CDT
----- Original Message ----- From: "E.P. Grondine" <epgrondine at yahoo.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Saturday, August 06, 2011 7:12 PM
Subject: [meteorite-list] CAI inclusions


> Hi all -
>
> Simple question - what classes of meteorites have CAI inclusions?
>
> E.P.
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Received on Mon 08 Aug 2011 12:59:06 AM PDT