[meteorite-list] Polishing slices?

From: David Freeman <dfreeman_at_meteoritecentral.com>
Date: Mon Mar 21 13:24:54 2005
Message-ID: <422CE70B.9020205_at_fascination.com>

Dear sanders;
If you still go with sanding papers instead of grit, automobile supply
stores have wet/dry sanding papers that go up to 2,000 grit for very
little dollars.
Dave F. carbuff

Darren Garrison wrote:

>I'm looking for tips on polishing slices. I have a few NWA slices from Ebay that show saw marks,
>and have been using various grits of sandpaper to smooth the surface, but while I get a smooth
>surface, it still has a dull, matte appearance to it. I have grades of sandpaper from 60 to 220,
>start with the smallest grit that will still remove the saw marks, then grade to finer sandpaper
>until I reach the 220, after which I try to polish it further by rubbing it on sheets of white
>paper. I still don't get a surface that looks as good as the "professionally" polished ones,
>though. Do I need to go down to a specific grit of sandpaper (I see that they go way beyond 220) or
>some other specialized polishing compound?
>
>Look at this example-- the "after" looks much nicer that the "before", but I'm thinking that the
>"after" could look even more nicer.
>
>http://webpages.charter.net/garrison6328/before_and_after.jpg
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Received on Mon 07 Mar 2005 06:43:07 PM PST