[meteorite-list] thin section waste?

[Michael Farmer]

It likely is due to the manufacturing needs, the need to properly mount it, 
or grip it.
That question would be best for the section maker, as they know why they 
need it so thick.
Perhaps it is to make multiple sections.
You perhaps should have clarified that in your first email, it merely looked 
like you do not want to have any cut loss on the section.You did not specify 
that it was a particular situation with exact needs (for example the 10mm 
that they request).
I agree that there is perhaps a better way. But you also need to understand, 
that sections makers make sections of anything, and meteorites is one little 
niche, so perhaps they don't take into account the rarity of the material.
Mike
----- Original Message ----- 
From: "Tom Knudson" <peregrineflier at npgcable.com>
To: "Michael Farmer" <meteoritehunter at comcast.net>; "met list" 
<meteorite-list at meteoritecentral.com>
Sent: Wednesday, June 08, 2005 5:27 PM
Subject: Re: [meteorite-list] thin section waste?


> 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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>> > Meteorite-list at meteoritecentral.com
>> > http://six.pairlist.net/mailman/listinfo/meteorite-list
>> >
>>
>>
>>
>>
>>
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>
>