I’ve seen a number of posts on this subject, but you folks might be
interested in going a little further and reading an article by
Merrill O. Murphy in the archives of The Eclectic Lapidary, January
1, 1998 titled, “Gems Polish Because…”
It’s a fantastic piece discussing many aspects of polishing and the
theories to explain why. There’s no absolute answer, but there are
some strong suggestions and opinions by a man of science who was
also a faceter and friend to the lapidary community for many years
before his passing in 2004.
Carol
Carol J. Bova