[meteorite-list] thin section waste?

[Tom Knudson]

Hi Mike, that's not what I asked, I asked, if it needs to be so thin, why
cut a 10mm piece and cut it again to 2 to 4 mm, why not start with a piece
that thin to begin with?  NAU recommends a thin section maker and they want
the piece  27 x 46 mm rectangular and 10mm thick, I see no reason to waste
3/4's of it.
Thanks, Tom
peregrineflier <><

----- Original Message -----
From: "Michael Farmer" <meteoritehunter at comcast.net>
To: "Tom Knudson" <peregrineflier at npgcable.com>; "met list"
<meteorite-list at meteoritecentral.com>
Sent: Wednesday, June 08, 2005 5:23 PM
Subject: Re: [meteorite-list] thin section waste?


> Tom, will, then why waste the time and glue to paste it to the slide? Just
> throw a chunk in the machine. Of course, then you will destroy a
> multi-million $$$ machine but hay, you saved some material from being
ground
> away.
> A thin section is made so thin that light can pass through the meteorite!
It
> has to be ground down that thin.
> Have you ever seen a thin section?
> Mike
> ----- Original Message -----
> From: "Tom Knudson" <peregrineflier at npgcable.com>
> To: "met list" <meteorite-list at meteoritecentral.com>
> Sent: Wednesday, June 08, 2005 4:53 PM
> Subject: [meteorite-list] thin section waste?
>
>
> > Hi List, I know nothing about thin sections or how they are made. So, I
> > went
> > to Google like a good boy and read about it.  All the sites I visited
said
> > the same thing, but gave no explanation. They said you end up with a
> > "chip"
> > it is the piece that is clued to the slide.  They say to, take a "chip"
> > 27
> > x 46 mm rectangular and 10mm thick epoxy it to the glass then cut off
the
> > chip as close to the glass as possible leaving just a thin slice
attached
> > to
> > the glass.
> >   Okay, I said in the beginning, I know nothing about thin sections, but
> > that seems like a waste of time and material to me!!!  You just wasted
> > 3/4's
> > of the material! Why not take a piece 27 x 46mm and 4mm thick and epoxy
it
> > to the glass and save your self the second cut and 6mm of your material?
> > You can call me what you will, but I can not see the reasoning behind
the
> > waste!  If you are making a lunar thin section, that is an expensive
> > proposition!
> >
> > http://almandine.geol.wwu.edu/other/thinsections/
> >
> >
> > Thanks, Tom
> > peregrineflier <><
> >
> >
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>
>
>
>
>
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