[meteorite-list] Norwegian meteorite classification guessing game

From: Martin Horejsi <accretiondesk_at_meteoritecentral.com>
Date: Tue Jul 18 14:43:25 2006
Message-ID: <9c2f96d20607181143t32759916yb70c9e63f86798f9_at_mail.gmail.com>

Make mine with rocks and salt.

Here is a pic from S-V meteorites I pulled from Pele's Europa CD of
meteorites. Note the missing contraction cracks on this fragment of
Ornans.

http://www.geocities.com/planetwhy/ornans_sergei_vassiliev.jpg

Cheers,

Martin


On 7/18/06, Adam Hupe <raremeteorites_at_comcast.net> wrote:
> Sure, A Margarita would be a fair wager! I like mine on the rocks!
>
> Take Care,
>
> Adam
>
>
> ----- Original Message -----
> From: "Martin Horejsi" <accretiondesk_at_gmail.com>
> To: "Adam Hupe" <raremeteorites_at_comcast.net>
> Cc: <meteorite-list_at_meteoritecentral.com>
> Sent: Tuesday, July 18, 2006 11:34 AM
> Subject: Re: Re: Re: [meteorite-list] Norwegian meteorite classification
> guessing game
>
>
> > Hi Adam,
> >
> > I agree that third-hand Internet-based visual means are an extremely
> > poor, unreliable, ineffective, and highly inappropriate method of
> > classifying meteorites. But I also agree that it is fun.
> >
> > Your scientific wild-assed guess and mine likely differ based upon our
> > personal experiences with meteorites. So... are you willing to bet a
> > margarita in Tucson on your guess? I am.
> >
> > Cheers,
> >
> > Martin
> >
> >
> >
> >
> >
> >
> > On 7/18/06, Adam Hupe <raremeteorites_at_comcast.net> wrote:
> > > Hi Martin and All,
> > >
> > > I don not think images are a good way to ascertain classifications but
> in
> > > this case I took a S.W.A.G. at it in the interest of fun. I think the
> crust
> > > is wrong for a CO3 because virtually every sample of a CO3 I have seen
> has
> > > very fine contraction cracks, some do not even penetrate as deep as the
> > > matrix. These cracks show up in detailed images. These cracks are absent
> in
> > > the enhanced image provided by a List member taken from an article on
> the
> > > new fall. The color of CO3 type crusts is usually semi-gloss black,
> never
> > > flat black like the one in the image. In my opinion, the crusts are
> always
> > > uniformly thin on a CO3 and never velvet-like and patchy.
> > >
> > > I think many feel it is a CO3 based on the numerous very small
> chondrules
> > > and not the crust. I agree the chondrules are too small for an LL, CV,
> CR,
> > > CK or even an L. They are too numerous for a CM2 which are sparsely
> > > populated. This leaves only CO, H or Anom types as candidates. I picked
> an H
> > > type because I have seen examples with exceedingly small chondrules,
> velvet
> > > like flat black crusts and friable matrixes.
> > >
> > > Take Care,
> > >
> > > Adam
> > >
> > >
> > > ----- Original Message -----
> > >
> > > From: "Martin Horejsi" <accretiondesk_at_gmail.com>
> > > To: "Adam Hupe" <raremeteorites_at_comcast.net>
> > > Cc: "Michael Farmer" <meteoritehunter_at_comcast.net>;
> > > <meteorite-list_at_meteoritecentral.com>
> > > Sent: Tuesday, July 18, 2006 5:46 AM
> > > Subject: Re: Re: [meteorite-list] Norwegian meteorite classification
> > > guessing game
> > >
> > >
> > > > On 7/17/06, Adam Hupe <raremeteorites_at_comcast.net> wrote:
> > > > > The crust is wrong for a CO3. The famous "Out House Hammer Stone",
> I
> > > can
> > > > > smell history in the making!
> > > >
> > > > Hi Adam,
> > > >
> > > > In what way do you think the crust is wrong for a CO3?
> > > >
> > > > Just curious.
> > > >
> > > > Martin
> > >
> > >
> > > ______________________________________________
> > > Meteorite-list mailing list
> > > Meteorite-list_at_meteoritecentral.com
> > > http://six.pairlist.net/mailman/listinfo/meteorite-list
> > >
> >
>
>
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Received on Tue 18 Jul 2006 02:43:00 PM PDT