[meteorite-list] meteorite slices

From: meteoriteshow <meteoriteshow_at_meteoritecentral.com>
Date: Thu Apr 22 10:31:58 2004
Message-ID: <00f401c3d370$ac9d6560$023d4152_at_monordinateur>

100% agree!
Fred B - Lyon (France)
----- Original Message -----
From: "Adam Hupe" <adamhupe_at_comcast.net>
To: <meteorite-list_at_meteoritecentral.com>
Sent: Sunday, January 04, 2004 7:53 PM
Subject: Re: [meteorite-list] meteorite slices


> Dear List Members,
>
> I agree, there are a lot of meteorites with saw marks ruining an otherwise
> good looking appearance offered by dealers. I see no reason a dealer
should
> not invest in a diamond lap and use it other than trying to save money and
> time to increase profits. Yes, it cost money and the material losses add
up
> but it is important for the following reasons:
>
> If a new collector purchases a poorly prepared specimen he may not
> appreciate the true beauty of meteorites and be turned off to collecting
any
> more.
>
> Viewing of characteristics on a polished surface is far better than one
with
> unsightly saw marks.
>
> If a dealer does not polish he or she probably does not take the time to
dry
> out specimens cut in water. On the same note, they probably do not
dissolve
> the oil left behind by the saw with ethyl alcohol ether.
>
> A slice with saw marks can not be wiped off properly after handling. The
> chemicals (sweat) left behind from touching a specimen will be trapped in
> the saw grooves causing metal to corrode and the matrix to become stained.
>
> Some dealers say only one side of a slice is viewed so only one side needs
> to be polished. I disagree, the customer is paying for a prepared slice
and
> this means both sides should be polished for the same reasons listed
above.
>
> I enjoy preparing specimens because it is part of my avocation. Polishing
> meteorite slices I find to be relaxing. There is nothing like seeing a
> properly prepared slice under magnification for the first time or the
> 10,000th time. Each surface is different and deserves decent preparation.
> We have never sold a cut specimen that was not polished on both sides
except
> on a very rare occasion like a Nahklite which would turn to mud if such an
> attempt were made. The only excuse I see is if something is
extraordinarily
> rare and a scientist advised against polishing it as has been the case on
a
> few planetary meteorites we have worked on. Other specimens can be
> stabilized so there is no excuse for not polished cut examples.
>
> Sorry so long winded about this. Poor workmanship has always bothered me.
>
> All the best,
>
> Adam Hupe
> The Hupe Collection
> IMCA 2185
>
>
>
>
>
>
>
> ----- Original Message -----
> From: "Guy Heinen" <guyhein_at_mailsvr.pt.lu>
> To: <meteorite-list_at_meteoritecentral.com>
> Sent: Sunday, January 04, 2004 8:46 AM
> Subject: [meteorite-list] meteorite slices
>
>
> > Dear listies,
> >
> > what do you think about meteorite slices showing still the marks of
> > the saw blade, giving you even the opportunity to calculate the saw
> > blade's diameter?
> > Alas, times of mirror-finished slices sold by dealers like David New
> > seem to be gone.
> > A proposal to dealers:
> > Sell your slices or partslices
> > a-quality: polished surface
> > b-quality: sawed surface.
> > Most meteorite collectors don't have grinding or polishing tools and
> > are collecting meteorites also for the aesthetics of a
> > mirror-finished surface showing fine details.
> > A partslice showing saw marks is something very ugly. Some collectors
> > seem to sublimate this ugliness by the thrill to held something
> > extraterrestrial in their hands and are not demanding for a quality
> > finished surface.
> >
> > My 2 (Euro)cents,
> >
> > Guy Heinen
> >
> > ______________________________________________
> > Meteorite-list mailing list
> > Meteorite-list_at_meteoritecentral.com
> > http://www.pairlist.net/mailman/listinfo/meteorite-list
>
>
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Received on Mon 05 Jan 2004 04:45:37 AM PST