[meteorite-list] Polishing slices?

From: Darren Garrison <cynapse_at_meteoritecentral.com>
Date: Mon Mar 21 13:24:54 2005
Message-ID: <iaip219evqmgrgmid37ahntp3sa152hu7n_at_4ax.com>

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
Received on Mon 07 Mar 2005 04:58:06 PM PST