Amber is worked dry, with a loose, not stitched, buff charged with
plain old tripoli. Go slow, both with pressure and speed. Tripoli
will also cut amber. When it appears you have removed all
scratches, rub the amber on a clean pair of denim blue jeans. If
your scratches are light, just the clean jeans is enough to brighten
the stone. Enjoy the aroma of a pine forest in the process.